Παραπομπή APA

Gupta, P. (1995). Introduction to operations research. S.Chand & company.

Παραπομπή Chicago Style

Gupta, Premkumar. Introduction to Operations Research. New Delhi: S.Chand & company, 1995.

Παραπομπή MLA

Gupta, Premkumar. Introduction to Operations Research. S.Chand & company, 1995.