In a project as large as this, you’ll want to develop a system for recording the sources you have found for your topic.
One way to keep a record for you (and your instructor) of what and where you have searched for sources is to use Worksheet 2: Sample Research Log (see Home: Worksheets 1-10). This log can also be helpful information to have when you consult a librarian.
Or consider doing the following:
As you begin your research, create a "Works Cited" or Bibliography card for each source you find -- either an "electronic card" you can easily find on your computer or an actual 3 x 5 paper card.
On that card, include the author, title, and place and date of publication -- make certain you spell everything correctly.
If you want to use a short-hand method for referring to the source, you could give the source a number.
If you consult a source electronically, make certain to indicate which database (such as JSTOR) or electronic reference source (such as Encyclopaedia Britannica) you used.
You may also want to keep an email folder with links that will get you back to the journal articles or encyclopedia entries you consulted.