Bibliographies with biber and biblatex
This example shows how to automatically generate citations and a bibliography with biblatex and biber.
Biblatex and biber work together to automatically format references and citations like the older cite or natbib and bibtex tool chain, but they offer more powerful and easier to use formatting and better support for special characters (unicode).
For a full list of biblatex styles, see the user guide in the biblatex manual.
LaTeX Bibliography Example: The natbib Package
The natbib package provides automatic numbering, sorting and formatting of in text citations and bibliographic references in LaTeX. It supports both numeric and author-year citation styles.
The natbib package is the most commonly used package for handling references in LaTeX, and it is very functional, but the more modern biblatex package is also worth a look.
The Chicago Citation Style with biblatex
The biblatex-chicago package implements the citation style of the Chicago Manual of Style, 16th edition. In this example, the notes option causes biblatex's autocite command to put citations in footnotes. The package can also produce inline author-year citations in the Chicago style. See the package documentation for more information.
Ejemplo Informecon APA
Este es un ejemplo de un documento donde se incluyen partes en español y además las referencias de APA
Sofìa Fonseca Muñoz
Per-chapter bibliographies with chapterbib
This is not a full thesis template! It only demonstrates how to create per-chapter references using the chapterbib package with BibTeX. (Do not use with BibLaTeX!)
LianTze Lim (Overleaf)
Multiple bibliographies with bibunits
This example shows how to create multiple bibliographies/reference lists in the same document, potentially from different .bib files, using the bibunits package.
For more information, see the bibunits documentation.
Example using xr package on Overleaf
This project demonstrates how the xr package can be used on Overleaf to resolve labels in other .tex files that have not been \include-d in the main file.
Make sure you enable the correct system call in latexmkrc, depending on the LaTeX engine you're using!
LianTze Lim (from an answer by cyberSingularity at http://tex.stackexchange.com/a/69832/226)