Copies of sources listed in the bibliography, with appropriate bibliographic information written on the first page. See the Research Packet for more information about what specific bibliographic information is required for each type of source.
NOTE: You don't need to make a NEW copy of your source to hand in to me. Handing in your originals is fine. However, if you do hand in your original copy, it would be a good idea to write down all bibliographic information and notes about location for these sources, so that you can get back to them in case they get lost. (Always a good policy anyway.)