There are many different styles for citing sources from your research. To learn about various style guides and how to cite different types of sources use the special citation management tools.
Citation management tools are programs (web-based or browser-based) that collect records or citations from research databases (indexes, catalogs, etc.) that you can then organize for your research projects. They also help you cite your research by creating bibliographies, citations, and footnotes automatically.
Mendeley is a free reference manager and academic social network. Make your own fully-searchable library in seconds, cite as you write and read and annotate your PDFs on any device.
Zotero is free and open-source software plugin that you can download to your computer and use with Firefox browser. It is easy-to-use tool to help you collect, organize, cite, and share your research sources. Zotero allows users to generate citations and bibliographies through word processor plugins, or directly in Zotero, using Citation Style Language styles (APA, MLA, Chicago).