एपीए उद्धरण

Gupta, P. (1994). Operations research. S.Chand.

शिकागो स्टाइल उद्धरण

Gupta, Premkumar. Operations Research. New Delhi: S.Chand, 1994.

एमएलए उद्धरण

Gupta, Premkumar. Operations Research. S.Chand, 1994.