Reference management software (also called citation management software or bibliographic management software) is software for students to use for recording and using bibliographic citations. Once a citation has been added, it can be used time and again in generating lists of references for scholarly papers.
EndNote Web is the package USU has provided to students. Sigh-up for an account or read more about Endnote Web.
RefWorks is a online research tool as well as offering the ability to collaborate with peers. Sign-up for an account with RefWorks
Zotero creates an easy to use tool bar that makes orgainzing and collecting nearly automatic. Sign-up for an account with Zotero
Two other popular choices are EasyBib and Mendeley
A "citation style" is simply the way the citation looks. The style dictates what information is necessary and how that information is ordered and formatted. Different disciplines will use different styles. APA is typically used by education, psychology, and the sciences while MLA is used more for the humanities. Your instructor will inform you which style you need to follow.
The Online Writing Lab at Purdue University will assist you in nearly every aspect of your writing assignment. Visit the lab often