Carnegie, D. (1940). How to win friend and influences people (6ª ed.). Pocket Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCarnegie, Dale. How to Win Friend and Influences People. 6ª ed. Pocket Books, 1940.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCarnegie, Dale. How to Win Friend and Influences People. 6ª ed. Pocket Books, 1940.
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