Styl cytowania APA

Gupta, P. K., & Hira, D. (2002). Operations research. S. Chand & company.

Styl cytowania Chicago

Gupta, Prem Kumar, i D.S Hira. Operations Research. New Delhi: S. Chand & company, 2002.

Styl cytowania MLA

Gupta, Prem Kumar, i D.S Hira. Operations Research. S. Chand & company, 2002.