Burt, D. N., Petcavage, S. D., & Pinkerton, R. L. (2012). Proactive purchasing in the supply chain: The key to world-class procurement. McGraw-Hill Professional.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBurt, David N., Sheila D. Petcavage, और Richard L. Pinkerton. Proactive Purchasing in the Supply Chain: The Key to World-class Procurement. New York: McGraw-Hill Professional, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBurt, David N., et al. Proactive Purchasing in the Supply Chain: The Key to World-class Procurement. McGraw-Hill Professional, 2012.
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