APA (7th ed.) Citation

Peterson's (Firm) & Snider, M. D. (2012). Peterson's master the GRE, 2013. Peterson's.

Chicago Style (17th ed.) Citation

Peterson's (Firm) and Mark D. Snider. Peterson's Master the GRE, 2013. Lawrenceville, NJ: Peterson's, 2012.

MLA (8th ed.) Citation

Peterson's (Firm) and Mark D. Snider. Peterson's Master the GRE, 2013. Peterson's, 2012.