APA-viite (7. p.)

Gupta, P., & Hira D.S. (2020). Operations Research (7th.). S.Chand Publisher.

Chicago-viite (17. p.)

Gupta, P.K, ja Hira D.S. Operations Research. 7th. New Delhi: S.Chand Publisher, 2020.

MLA-viite (9. p.)

Gupta, P.K, ja Hira D.S. Operations Research. 7th. S.Chand Publisher, 2020.