2:10 — Citing a webpage
4:22 — Citing an article from a database
6:42 — Citing a book
This video covers how to set up the Works Cited page as well as how to format citations for specific types of sources in MLA format.
If you need to know how to set up a Word 2010 document in MLA format before you even begin typing your paper, I have a video for that as well:
Hopefully this will help you write your MLA paper in proper format!