KINGSMAN BRIAN G. (1985). RAW MATERIALS PURCHASING AN OPERATIONAL RESEARCH APPROACH. PERGAMON PRESS.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKINGSMAN BRIAN G. RAW MATERIALS PURCHASING AN OPERATIONAL RESEARCH APPROACH. OXFORD: PERGAMON PRESS, 1985.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKINGSMAN BRIAN G. RAW MATERIALS PURCHASING AN OPERATIONAL RESEARCH APPROACH. PERGAMON PRESS, 1985.
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