Format each of your sources properly. Refer to your instructor's specific guidelines or the specific guidelines of the style you are using. The exact formatting will depend on the style and type of reference. For example, a magazine article in MLA style would be formatted as follows: Author's last name, author's first name. "Article title." Publication city: Name of publisher underlined Date the article was published: Page numbers article appears on.
Use pencil when making the bibliography cards. Once your instructor checks them over, you may need to make corrections. Erasing small errors is easier than rewriting the entire card.
Write out each of your references in proper format on individual note cards according to the style you're using. Double check to be sure you are properly formatting each source as you write it down.
Alphabetize your bibliography cards according to the first letter of the first piece of information on the card. For example, if the last name is first, this is what you use to alphabetize the cards. If all you have is the article title, then use the first word in the title other than "The," "An" or "A."