Gaya APA

Wiest, J, D., Levy, F, K. (1977). A Management Guide to Pert/CPM with Gert / PDM and other Networks; Second Edition . New Jersey: Prentice-Hall.

Gaya MLA

Wiest, Jerome, D.., Levy, Ferdinand, K.. "A Management Guide to Pert/CPM with Gert / PDM and other Networks; Second Edition". New Jersey: Prentice-Hall, 1977. Text.