APA (7th ed.) Citation

Kaplan, Inc. (2012). New GMAT essentials 2013. Kaplan Pub.

Chicago Style (17th ed.) Citation

Kaplan, Inc. New GMAT Essentials 2013. New York: Kaplan Pub, 2012.

MLA (9th ed.) Citation

Kaplan, Inc. New GMAT Essentials 2013. Kaplan Pub, 2012.

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