APA引用形式

Gupta,P.K, & Hira,D.S. (1991). Problems in Operations Research: Principles and solutions. S.Chand & company Ltd.

シカゴスタイル引用形

Gupta,P.K, , Hira,D.S. Problems in Operations Research: Principles and Solutions. New Delhi: S.Chand & company Ltd, 1991.

MLA引用形式

Gupta,P.K, , Hira,D.S. Problems in Operations Research: Principles and Solutions. S.Chand & company Ltd, 1991.

警告: この引用は必ずしも正確ではありません.