Gupta, P. (2003). Problems in operations research: methods and: Solutions. Sultan Chand.
Citazione stile Chigago Style (17a edizione)Gupta, P.K. Problems in Operations Research: Methods and: Solutions. New Delhi: Sultan Chand, 2003.
Citatione MLA (9a ed.)Gupta, P.K. Problems in Operations Research: Methods and: Solutions. Sultan Chand, 2003.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.