You may need a citation guide that is more detailed than the department style sheet for your notes and bibliography. I suggest Kate Turabian, A Manual for Writers of Term Papers, Theses, and Dissertations , 6th ed. The department style sheet generally follows the Turabian or Chicago style. Online comparisons of styles and summaries of the Chicago style are also available. Citing electronic sources is relatively new and standards are evolving.
Some style guides provide incomplete or inconsistent advice.
As they suggest, when in doubt, it is better to give too much information than too little. To be consistent with the style sheet for Humanities courses, you should follow the Chicago style to cite online sources . Before you begin writing, I recommend that you read William Strunk, Jr. and E.B. White, The Elements of Style , 3rd ed. Strunk and White's brief advice on usage and style is a model of clear, concise writing. Check the electronic edition of an early version of Strunk's Elements of Style , then buy your own copy of Strunk and White.