APA (7th ed.) Citation

Estrella, J. A., Zahran, S., Ducan, C., Haner, J. L., & Jen, R. PMP PRACTICE NAKES PERFECT: Over 1000 PMP Practice Questions and Answers.

Chicago Style (17th ed.) Citation

Estrella, John A., Sami Zahran, Charles Ducan, James L. Haner, and Rubin Jen. PMP PRACTICE NAKES PERFECT: Over 1000 PMP Practice Questions and Answers.

MLA (8th ed.) Citation

Estrella, John A., et al. PMP PRACTICE NAKES PERFECT: Over 1000 PMP Practice Questions and Answers.