Add the parenthetical citation at the end of the sentence in which you used information from that reference.
Follow the first parenthesis with the author's last name or a list of last names for works with multiple authors; for example "Smith, Jones, and White". If a reference has four or more authors, you can choose to list all the names or use the first author's name followed by "et al."; for example "Smith et al."
Use the first initial and last name if you have multiple authors in your works cited list with the same last name; for example, "A. Smith."
Use a shortened version of the title for works with no author. Place quotation marks around the titles of short works and italicize the titles of longer works.
Include a shortened version of the title if the same person or people authored multiple references. For example, "(Smith and Jones, "An Article" 25)". Italicize the titles of longer works.
Add one space after the author's name or the title, then list the page number or span of numbers where you got the information. Do not use a comma between the name and page number. Include the volume number for multi-volume works; for example, use "1: 15" for page 15 of volume one.
Omit the page number for non-print references such as webpages, movies and radio programs.
Separate multiple citations in the same set of parentheses with a semicolon.
Close the parentheses and place the punctuation for the sentence after the final parenthesis.