Pugh, D. G., & Bacon, T. R. (2005). Powerful proposals: How to give your business the winning edge. Amacom.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPugh, David George, और Terry R. Bacon. Powerful Proposals: How to Give Your Business the Winning Edge. New York: Amacom, 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPugh, David George, और Terry R. Bacon. Powerful Proposals: How to Give Your Business the Winning Edge. Amacom, 2005.
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