APA (7th ed.) Citation

Kolby, J., & Thornburg, S. (2002). GMAT PrepCourse. Nova Press.

Chicago Style (17th ed.) Citation

Kolby, Jeff, and Scott Thornburg. GMAT PrepCourse. Los Angeles, CA: Nova Press, 2002.

MLA (9th ed.) Citation

Kolby, Jeff, and Scott Thornburg. GMAT PrepCourse. Nova Press, 2002.

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