Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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