APA-viite (7. p.)

Gupta, S. P., & Gupta,P K. (2022). Quantitative Techniques and Operations Research (4th ed.). Sultan Chand and Sons.

Chicago-viite (17. p.)

Gupta, S P., ja Gupta,P K. Quantitative Techniques and Operations Research. 4th ed. New Delhi: Sultan Chand and Sons, 2022.

MLA-viite (9. p.)

Gupta, S P., ja Gupta,P K. Quantitative Techniques and Operations Research. 4th ed. Sultan Chand and Sons, 2022.