Research Paper Writing & Citation Guide 

For MLA, APA, and Chicago styles, use this online tool to enter your sources' information, choose the appropriate style, and have the reference formatted.

An online tool that lets you import citations and documents from all kinds of online sources; organize them; and create reference lists in various output styles.

Another online tool, with MLA info for free, but costs to subscribe to have it process other styles. However, includes some sample pages (for free) of APA, MLA, Chicago, etc., at http://www.easybib.com/librarians