A few encyclopedias for introductions or overviews on a topic.
Books and similar materials at W&L and elsewhere.
Indexes to articles in journals, magazines, and newspapers.
Governments, international organizations, statistical agencies, and more.
Here is help with MLA, Chicago, and other citation styles, as well as advice on avoiding plagiarism.
If you would like some help with your research, you can contact Senior Reference Librarian Dick Grefe.