GUPTA PREM KUMAR. (2005). OPERATIONS RESEARCH. S.CHAND & COMPANY LTD.
Cita Chicago (17th ed.)GUPTA PREM KUMAR. OPERATIONS RESEARCH. NEW DELHI: S.CHAND & COMPANY LTD, 2005.
Cita MLA (9th ed.)GUPTA PREM KUMAR. OPERATIONS RESEARCH. S.CHAND & COMPANY LTD, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.