APA (7th ed.) Citation

Manhattan Prep (Firm). (2014). Manhattan Prep GMAT (6th edition.). Manhattan Prep.

Chicago Style (17th ed.) Citation

Manhattan Prep (Firm). Manhattan Prep GMAT. 6th edition. New York, NY: Manhattan Prep, 2014.

MLA (9th ed.) Citation

Manhattan Prep (Firm). Manhattan Prep GMAT. 6th edition. Manhattan Prep, 2014.

Warning: These citations may not always be 100% accurate.