Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research. It helps you track all your sources build bibliographies in minutes! It's also collaborative, so if you're working on a project with multiple people you can all save your sources in one place!
Zotero Tutorials
This LibGuide from Ohio University has great video tutorials on using Zotero.
The American Anthropological Association (AAA) now uses to the current edition of the Chicago Manual of Style author-date style as its citation and style guide for publications.
The Quick Guide will help get you started with basic publication types.
You can find the full-text of the style guide in print or online.
Here are some other citation resources:
The Craft of Research by 
Salsa Dancing into the Social Sciences: Research in an Age of Info-Glut by