Citazione APA

Gupta, P., & Hira, D. (1979). Operations research: An introduction. S chand.

Stile di citazione Chicago

Gupta, P.K, e D.S Hira. Operations Research: An Introduction. New Delhi: S chand, 1979.

Citazione MLA

Gupta, P.K, e D.S Hira. Operations Research: An Introduction. S chand, 1979.