# Change Margins Latex Bibliography Reference

The page dimensions in a LaTeX document are highly configurable and the geometry package offers a simple way to change the length and layout of different elements such as the paper size, margins, footnote, header, orientation, etc.

## Introduction

Suppose you have to create a document in a4paper and the text shouldn't exceed 6 in width and 8 in height. To create it with geometry is easy, include this one line in the preamble:

The parameters passed to the command determine the layout. In this case a4paper establishes the paper size and the total parameter determines the size of the text area.

Open an example of the geometry package in ShareLaTeX

## Paper size, orientation and margins

Paper size, orientation and margins are the most common page elements that must be changed depending on the type of document. To set the desired values there are two ways, either you pass them as parameters to the statement as in the example above, or use a command in the preamble.

For example, let's create a document with legal paper size, landscape orientation and a 2 in margin:

Also, you can achieve the same in a slightly different way

As you see, the parameters are comma separated. For a complete list of predefined paper sizes see the reference guide. The second parameter is the orientation, its default value is portrait. Finally, each margin is set to 2 in.

Open an example of the geometry package in ShareLaTeX

## Fine tuning your LaTeX page dimensions

The regular LaTeX page dimensions are presented (with example values) in picture at the right of this section.

The geometry package provides a flexible and easy interface to change page dimensions. You can change the page layout with intuitive parameters:

Next is a list of document elements whose length can be changed. The parameters have to be written in the form , use standard LaTeX units. (mm, cm, pt, in)

Corresponds to element 8 in the figure.
Element 7 in the figure.
Depends on other parameters, by default defines the dimensions of the Body, but can be combined with the , , and commands to change the dimensions of Header, the Body, the Footer and the Margin Notes altogether.
, ,
These three parameters change the length of the left margin. Elements 1 and 3 in the figure, combined.
, ,
These three parameters change the length of the right margin. Elements 9 and 10 in the figure, combined.
,
These two parameters represent elements 2 and 6 in the figure, combined.
,
These two parameters set the distance from the bottom edge of the document to its baseline.
Height of the header
Separation between the bottom of the text (baseline) and the top of the footnote. Element 11 in the figure.
Distance between the baseline of the text and the baseline of the footnote.
,
Width of the margin notes. Element 10 in the figure.

The paper size can be set to any size you need by means of the command .

Let's see an example with some of the aforementioned options:

Here the text area, the left margin and the top margin are set. The right and bottom margins are automatically computed to fit the page.

Open an example of the geometry package in ShareLaTeX

##  Reference guide

 parameter description values papersize Determines the size of the paper a0paper, a1paper, a2paper, a3paper, a4paper, a5paper, a6paper, b0paper, b1paper, b2paper, b3paper, b4paper, b5paper, b6paper, c0paper, c1paper, c2paper, c3paper, c4paper, c5paper, c6paper, b0j, b1j, b2j, b3j, b4j, b5j, b6j, ansiapaper, ansibpaper, ansicpaper, ansidpaper, ansiepaper, letterpaper, executivepaper, legalpaper

##  Further reading

\usepackage[a4paper, total={6in, 8in}]{geometry}
\usepackage[letterpaper, landscape, margin=2in]{geometry}
\usepackage{geometry}\geometry{legalpaper, landscape, margin=2in}
\usepackage{geometry}\geometry{ a4paper, total={170mm,257mm}, left=20mm, top=20mm, }

When it comes to bibliography management packages, there are three main options in LaTeX: bibtex, natbib and biblatex. Biblatex is a modern program to process bibliography information, provides an easier and more flexible interface and a better language localization that the other two options. This article explains how to use biblatex to manage and format the bibliography in a LaTeX document.

## Introduction

A minimal working example of the biblatex package is shown below:

\documentclass{article}\usepackage[utf8]{inputenc}\usepackage[english]{babel}   \usepackage{biblatex}\addbibresource{sample.bib}   \begin{document} Let's cite! The Einstein's journal paper \cite{einstein} and the Dirac's book \cite{dirac} are physics related items.   \printbibliography   \end{document}

There are four bibliography-related commands in this example:

Imports the package biblatex.
Imports the bibtex data file sample.bib, this file is the one that includes information about each referenced book, article, etc. See the bibliography file section for more information.
This command inserts a reference within the document, [1] in this case, that corresponds to an element in the bibliography, "einstein" is a keyword corresponding to an entry in sample.bib.
Prints the list of cited references, the default title is "References" for the article document class and "Bibliography" for books and reports.

ShareLaTeX provides several templates with pre-defined styles to manage bibliography. See this link

Open an example of the biblatex package in ShareLaTeX

## Basic usage

Several parameters can be passed to the package importing statement, let's see

\documentclass{article}\usepackage[utf8]{inputenc}\usepackage[english]{babel}   \usepackage{comment}   \usepackage[ backend=biber, style=alphabetic, sorting=ynt ]{biblatex}\addbibresource{sample.bib}   \title{Bibliography management: \texttt{biblatex} package}\author{Share\LaTeX}\date{}   \begin{document}   \maketitle   Using \texttt{biblatex} you can display bibliography divided into sections, depending of citation type. Let's cite! The Einstein's journal paper \cite{einstein} and the Dirac's book \cite{dirac} are physics related items. Next, \textit{The \LaTeX\ Companion} book \cite{latexcompanion}, the Donald Knuth's website \cite{knuthwebsite}, \textit{The Comprehensive Tex Archive Network} (CTAN) \cite{ctan} are \LaTeX\ related items; but the others Donald Knuth's items \cite{knuth-fa,knuth-acp} are dedicated to programming.   \medskip   \printbibliography

Some extra options, inside brackets and comma-separated, are added when importing biblatex:

Sets the backend to sort the bibliography, is the default one and recommended since it provides full localization for several commands and the styles for biber are easier to modify because they use standard LaTeX macros. The other supported backend is , which is a more traditional program; if set as backend will only used to sort the bibliography, so no bibtex styles can be used here.
Defines the bibliography style and the citation style, in this case . Depending on the style more citation commands might be available. See bibliography styles and citation styles for more information.
Determines the criteria to sort the bibliographic sources. In this case they are sorted by year, name and title. See the reference guide for a list of sorting options.

The rest of the commands were already explained at the introduction.

Open an example of the biblatex package in ShareLaTeX

## The bibliography file

The bibliography files must have the standard bibtex syntax

This file contains records in a special format, for instance, the first bibliographic reference is defined by:

This is the first line of a record entry, tells BibTeX that the information stored here is about an article. The information about this entry is enclosed within braces. Besides the entry types shown in the example (, , and ) there are a lot more, see the reference guide.
The label is assigned to this entry, is an identifier that can be used to refer this article within the document.
This is the first field in the bibliography entry, indicates that the author of this article is Albert Einstein. Several comma-separated fields can be added using the same syntax , for instance: title, pages, year, URL, etc. See the reference guide for a list of possible fields.

The information in this file can later be printed and referenced within a LaTeX document, as shown in the previous sections, with the command . Not all the information in the .bib file will be displayed, it depends on the bibliography style set in the document.

Open an example of the biblatex package in ShareLaTeX

## Customizing the bibliography

Biblatex allows high customization of the bibliography section with little effort. It was mentioned that several citation styles and bibliography styles are available, and you can also create new ones. Another customization option is to change the default title of the bibliography section.

\documentclass{article}\usepackage[utf8]{inputenc}\usepackage[english]{babel}   \usepackage{comment}   \usepackage[ backend=biber, style=alphabetic, sorting=ynt ]{biblatex}\addbibresource{sample.bib}   \title{Bibliography management: \texttt{biblatex} package}\author{Share\LaTeX}\date{}   \begin{document}   \maketitle   Using \texttt{biblatex} you can display bibliography divided into sections, depending of citation type. Let's cite! The Einstein's journal paper \cite{einstein} and the Dirac's book \cite{dirac} are physics related items. Next, \textit{The \LaTeX\ Companion} book \cite{latexcompanion}, the Donald Knuth's website \cite{knuthwebsite}, \textit{The Comprehensive Tex Archive Network} (CTAN) \cite{ctan} are \LaTeX\ related items; but the others Donald Knuth's items \cite{knuth-fa,knuth-acp} are dedicated to programming.   \medskip   \printbibliography[title={Whole bibliography}]

The additional parameter passed inside brackets to the command is the one that changes the title.

The bibliography can also be subdivided into sections based on different filters, for instance: print only references from the same author, the same journal or similar title. Below an example.

\printbibliography[type=article,title={Articles only}]\printbibliography[type=book,title={Books only}]   \printbibliography[keyword={physics},title={Physics-related only}]\printbibliography[keyword={latex},title={\LaTeX-related only}]

Here, the bibliography is divided in 4 sections. The syntax of the commands used here is explained below:

Only prints entries whose type is "article", and sets the title "Articles only" for this section. The same syntax works for any other entry type.
Filters bibliography entries that include the word "physics" in any of the fields. Sets the title "Physics-related only" for said section.

Open an example of the biblatex package in ShareLaTeX

For the bibliography the be printed in the table of contents an extra option must be passed to

\printbibliography[ heading=bibintoc, title={Whole bibliography} ]   \printbibliography[heading=subbibintoc,type=article,title={Articles only}]

• In the first case, adding adds the title to the table of contents as an unnumbered chapter if possible or as an unnumbered section otherwise.
• The second case is that adds the title as a second level entry in the table of contents, in this example as a subsection nested in "Whole bibliography".

Open an example of the biblatex package in ShareLaTeX

## Reference guide

Supported entry types

 article book mvbook inbook bookinbook suppbook booklet collection mvcollection incollection suppcollection manual misc online patent periodical suppperiodical proceedings mvproceedings inproceedings reference mvreference inreference report set thesis unpublished custom conference electronic masterthesis phdthesis techreport

Supported entry fields (The printed information depends on the bibliography style)

 abstract afterword annotation annotator author authortype bookauthor bookpagination booksubtitle booktitle chapter commentator date doi edition editor editortype eid entrysubtype eprint eprinttype eprintclass eventdate eventtitle file foreword holder howpublished indextitle institution introduction isan isbn ismn isrn issue issuesubtitle issuetitle iswc journalsubtitle journaltitle label language library location mainsubtitle maintitle month note number organization origdate origlanguage origlocation origpublisher origtitle pages pagetotal pagination part publisher pubstate reprinttitle series shortauthor shortedition shorthand shorthandintro shortjournal shortseries shorttitle subtitle title translator type url venue version volume year

Bibliography sorting options

option description
sort by name, title, year
sort by name, year, title
sort by name, year, volume, title
sort by alphabetic label, name, year, title
sort by alphabetic label, name, year, volume, title
sort by year (descending), name, title
entries are processed in citation order