Gaya APA

Hillier, F, S., Lieberman, G, J. (1980). introduction to operations research ed. 3 (3). New York: Holden day-Inc.

Gaya MLA

Hillier, Frederick, S.., Lieberman, Gerald, J.. "introduction to operations research ed. 3". 3 New York: Holden day-Inc, 1980. Text.