From the site:
"Citation Machine is an interactive Web tool designed to assist teachers in modeling the proper use of information property. Students are welcome to use this as well. You merely...
1) Click the type of resource you wish to cite,
2) Complete the Web form that appears with information from your resource, and
3) Click Make Citations to generate standard MLA & APA citations.
The primary goal of this tool is to make the proper crediting of information property so easy that it becomes a habit, not a laborious task that we stop doing outside of school."
Available at: http://citationmachine.net/