When you quote something, or repeat an idea you got from somewhere else, you need to cite that source, so that other readers can easily find it. Historians use footnotes for citation. Other disciplines use other forms--for example, the name of the book at the date in parentheses. In this course you must use foot or end-notes. Footnotes appear at the bottom of the page; end-notes appear on a separate page at the end of the paper.
For quotations from print sources, the history department at George Mason uses the Turabian or Chicago style. You can purchase one of the style guides written by Kate Turabian at any bookstore. There is also a limited version of the Turabian guide on the web. This site includes standards for citing electronic sources, like CD-Roms or the internet.
Again, all quotations or restatements of other people's ideas or conclusions should be supported with citations in the Turabian style.