APA (7th ed.) Citation

(2019). Cracking the GRE (2020 edition.). Penguin random House.

Chicago Style (17th ed.) Citation

Cracking the GRE. 2020 edition. New York: Penguin random House, 2019.

MLA (9th ed.) Citation

Cracking the GRE. 2020 edition. Penguin random House, 2019.