Gaya APA

Gass, S, I. (1975). Liniar programming : methodes and aplications (4). nEW dELHI: Mc Graw Hill.

Gaya MLA

Gass, Saul, I. "Liniar programming : methodes and aplications". 4 nEW dELHI: Mc Graw Hill, 1975. Text.