Gupta, P., & Hira, D. (1979). Operations research: An introduction. S chand.
シカゴスタイル引用形Gupta, P.K, , D.S Hira. Operations Research: An Introduction. New Delhi: S chand, 1979.
MLA引用形式Gupta, P.K, , D.S Hira. Operations Research: An Introduction. S chand, 1979.
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