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