D. Wiest, J., & K. Levy, F. (1977). A Manangement Guide to PERT/CPM (2nd ed.). PHI Learning.
Chicago Style (17. basım) AtıfD. Wiest, Jerome, ve Ferdinand K. Levy. A Manangement Guide to PERT/CPM. 2nd ed. New Delhi, India: PHI Learning, 1977.
MLA (9th ed.) AtıfD. Wiest, Jerome, ve Ferdinand K. Levy. A Manangement Guide to PERT/CPM. 2nd ed. PHI Learning, 1977.
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