Gupta, P. K. (2002). Problems in operations research: Principles and solutions. S Chand.
Čikaški stil citiranjaGupta, P K. Problems in Operations Research: Principles and Solutions. New Delhi: S Chand, 2002.
MLA način citiranjaGupta, P K. Problems in Operations Research: Principles and Solutions. S Chand, 2002.
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