Style guides provide information on writing and publication in various disciplines, including formatting manuscripts and cite sources. For example, the Publication Manual of the American Psychological Association, often referred to as APA style, covers writing for the behavioral and social sciences, manuscript structure, style mechanics, how to display results and credit and reference sources, details of the publication process, and more.
Use the tabs on the left for information on the AP, APA, ASA, Chicago/Turabian, MLA, and science citation styles and information on citing government information.

Above, you can find information on managing your research by using citation management tools.
Why do citations matter?
Why should you cite a source? There are many reasons. Take a look at this tutorial for more information on sources.