Your professor prefers that you use the Chicago Manual of Style for the papers in this course.
Chicago Manual of Style Online: Description: A style guide for American English published by the University of Chicago Press. It deals with aspects of editorial practice, from American English grammar and usage to proper citation style, used in document preparation.
Print Edition: REFDESK Z253 .U69
Using the work of another scholar without proper citation, whether that work is available in print or online, is plagiarism, a violation of the Emory Honor Code. It is extremely easy for professors to discover work plagiarized from web sources -- they know how to use Google at least as well as you do, and there are many online tools available specifically to help educators detect plagiarized work.