APA (7th ed.) Citation

Martz, G., & Robinson, A. Cracking the GMAT premium. Random House.

Chicago Style (17th ed.) Citation

Martz, Geoff, and Adam Robinson. Cracking the GMAT Premium. New York: Random House.

MLA (9th ed.) Citation

Martz, Geoff, and Adam Robinson. Cracking the GMAT Premium. Random House.

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