Cita APA (7th ed.)

Hira, D. S., & Gupta, P. K. (1997). Operations Research. Modern Book Centre.

Cita Chicago (17th ed.)

Hira, D. S., i P. K. Gupta. Operations Research. New Delhi: Modern Book Centre, 1997.

Cita MLA (9th ed.)

Hira, D. S., i P. K. Gupta. Operations Research. Modern Book Centre, 1997.