Gaya APA

Lieberman, G, J., Hillier, F, S. (2001). Introduction to Operations Research 7th Ed (7th Ed). United Stated of America: McGraw-Hill, Inc.

Gaya MLA

Lieberman, Gerald, J., Hillier, Frederick, S. "Introduction to Operations Research 7th Ed". 7th Ed United Stated of America: McGraw-Hill, Inc, 2001. Text.