APA aipamena

GUPTA P K. (1997). OPERATIONS RESEARCH (3.). SULTAN CHAND AND SONS.

Chicago Style aipamena

GUPTA P K. OPERATIONS RESEARCH. 3. NEW DELHI: SULTAN CHAND AND SONS, 1997.

MLA aipamena

GUPTA P K. OPERATIONS RESEARCH. 3. SULTAN CHAND AND SONS, 1997.