Philips, J. (2018). PMP Project Management Professional: Study Guide (fifth.). Mc Graw Hill.
Chicagoスタイル(17版)引用形式Philips, John. PMP Project Management Professional: Study Guide. fifth. New York: Mc Graw Hill, 2018.
MLA(9版)引用形式Philips, John. PMP Project Management Professional: Study Guide. fifth. Mc Graw Hill, 2018.
警告: この引用は必ずしも正確ではありません.