APA (7th ed.) Citation

Kolby, J. (2013). Nova's GRE prep course: Kolby, Jeff.

Chicago Style (17th ed.) Citation

Kolby, Jeff. Nova's GRE Prep Course: Kolby, Jeff. Nova Press, 2013.

MLA (9th ed.) Citation

Kolby, Jeff. Nova's GRE Prep Course: Kolby, Jeff. 2013.