APA (7th ed.) Citation

Hacker, D., Sommers, N. I., & Huster, K. (2020). Rules for writers (Ninth edition, 2020 APA update.). Bedford/St. Martin's.

Chicago Style (17th ed.) Citation

Hacker, Diana, Nancy I. Sommers, and Kimberli Huster. Rules for Writers. Ninth edition, 2020 APA update. Boston: Bedford/St. Martin's, 2020.

MLA (9th ed.) Citation

Hacker, Diana, et al. Rules for Writers. Ninth edition, 2020 APA update. Bedford/St. Martin's, 2020.