Gaya APA

Kumar, G., Hira, D. (2010). Operation reearch:for engineering,computer science,commerce & management economics . New Delhi: S.Chand & Company.

Gaya MLA

Kumar, Gupta,Prem., Hira, D.S. "Operation reearch:for engineering,computer science,commerce & management economics". New Delhi: S.Chand & Company, 2010. Text.