Operations Research Society of America. (1981). Operations Research Letters. North Holland Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOperations Research Society of America. Operations Research Letters. Amsterdam: North Holland Publishing, 1981.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOperations Research Society of America. Operations Research Letters. North Holland Publishing, 1981.
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