Gaya APA

Lieberman, G, J., Hillier, F, S. (1974). Operations research : part 1 (Ed.2). Dusseldorf: Holden-Day.

Gaya MLA

Lieberman, Gerald, J.., Hillier, Frederick, S.. "Operations research : part 1". Ed.2 Dusseldorf: Holden-Day, 1974. Teks.