APA (7th ed.) Citation

(2020). GMAT official guide quantitative review 2021. John Wiley & Sons, Inc..

Chicago Style (17th ed.) Citation

GMAT Official Guide Quantitative Review 2021. Hoboken, New Jersey: John Wiley & Sons, Inc., 2020.

MLA (9th ed.) Citation

GMAT Official Guide Quantitative Review 2021. John Wiley & Sons, Inc., 2020.

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