Prem Kumar Gupta, D. (2009). Problems in operations research: Principles and solutions. S. Chand.
シカゴスタイル引用形Prem Kumar Gupta, D.S. Problems in Operations Research: Principles and Solutions. New Delhi: S. Chand, 2009.
MLA引用形式Prem Kumar Gupta, D.S. Problems in Operations Research: Principles and Solutions. S. Chand, 2009.
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