APA
Wiest J. D., Levy F. K., . (1977). Management guide to PERT/CPM. New Delhi: Prentice Hall.
Chicago
Wiest Jerome D, Levy Ferdinand K, . 1977. Management guide to PERT/CPM. New Delhi: Prentice Hall.
Harvard
Wiest J. D., Levy F. K., . (1977). Management guide to PERT/CPM. New Delhi: Prentice Hall.
MLA
Wiest Jerome D, Levy Ferdinand K, . Management guide to PERT/CPM. New Delhi: Prentice Hall. 1977.