APA-viite (7. p.)

Gupta, P. K., & Hira, D. K. (2014). Introduction to Operations Research. S. Chand.

Chicago-viite (17. p.)

Gupta, Prem Kumar, ja D.S.; Kamboj Hira. Introduction to Operations Research. New Delhi: S. Chand, 2014.

MLA-viite (9. p.)

Gupta, Prem Kumar, ja D.S.; Kamboj Hira. Introduction to Operations Research. S. Chand, 2014.