Son of Citation Machine is a free online tool that helps you to generate citations for reference sources in 3 styles: MLA, APA, and Chicago. It is easy to learn and use. Watch the short video tutorial below to see how.
Then, click here to go directly to the website and try the citation tool yourself.
If you are using Microsoft Word for your assignment, you may be surprised to know that there are already tools packaged into the program to help you cite your sources. Check out this video that explains how.
Other websites devoted to helping students and other researchers cite their work are:
MLA Handbook for Writers of Research Papers by 
The Elements of Style by 
A Guide to MLA Documentation by 