APA-ийн эшлэл(7 дахь хэвлэлт)

Gupta, P. (2003). Problems in operations research: methods and: Solutions. Sultan Chand.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Gupta, P.K. Problems in Operations Research: Methods and: Solutions. New Delhi: Sultan Chand, 2003.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Gupta, P.K. Problems in Operations Research: Methods and: Solutions. Sultan Chand, 2003.