If it is the list of the sources at the end, the teacher will give you a format. You follow the format and list the books alphabetically by the last name of the author. If you use from the internet, be sure she/he tells the format for that and for magazines, journals, or pamphlets. If sounds complicated, but with the style manual in front of you, it is just a matter of following each item in order. Since, I last went to graduate school, we used the APA style, but you will probably need the MLA form. Be sure to check with the instructor, as it could make a difference. In addition, in some styles, the footnotes are on the bottom of each page where the reference is cited. Get the facts first.
Hope it helped.....😊