Evaluating your sources is a crucial step of the research process. You need to evaluate carefully each source to determine its appropriateness and quality.
It is particularly important to evaluation information that you find on the Web. Because there are no rules and anyone can post a page on the Web, you will have to determine whether the web site is of value. Go to Evaluating Web Sources for specific criteria used to analyze websites.
Check our Distinguishing Scholarly Journals from Other Periodicals page in order to evaluate periodicals by looking at their content, purpose, and intended audience.
History (Writing Center, University of North Carolina at Chapel Hill)
The History Student's Handbook: a Short Guide to Writing History Essays (University of Calgary, History Dept.)
For more information, consult the History subject guide.
The Chicago style is widely used in the humanities and social sciences and history in particular.