Dyfyniad APA

Hillier, F. S., & Lieberman, G. J. (1974). Operations research.- 2nd ed. (2nd ed.). Holden-Day.

Dyfyniad Arddull Chicago

Hillier, Frederick S., and Gerald J. Lieberman. Operations Research.- 2nd Ed. 2nd ed. San Francisco: Holden-Day, 1974.

Dyfyniad MLA

Hillier, Frederick S., and Gerald J. Lieberman. Operations Research.- 2nd Ed. 2nd ed. Holden-Day, 1974.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.