Gaya APA

S.Hillier, F., J.Liebermar, G. (2020). INTRODUCTION TO OPERATIONS RESEARCH (cet 6). New York: MCGraw Hill Companies , Inc.

Gaya MLA

S.Hillier, Frederick., J.Liebermar, Gerald. "INTRODUCTION TO OPERATIONS RESEARCH". cet 6 New York: MCGraw Hill Companies , Inc, 2020. Text.