APA (7. basım) Alıntı
Estrella, J. (2012). PMP practice makes perfect: Over 1,000 PMP practice questions and answers. Wiley.
Chicago Style (17. basım) Atıf
Estrella, John. PMP Practice Makes Perfect: Over 1,000 PMP Practice Questions and Answers. Indianapolis, IN: Wiley, 2012.
MLA (9th ed.) Atıf
Estrella, John. PMP Practice Makes Perfect: Over 1,000 PMP Practice Questions and Answers. Wiley, 2012.
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