Carnegie, D. (1940). How to win friend and influences people (6ª ed.). Pocket Books.
Chicago Style (17th ed.) CitationCarnegie, Dale. How to Win Friend and Influences People. 6ª ed. Pocket Books, 1940.
ציטוט MLACarnegie, Dale. How to Win Friend and Influences People. 6ª ed. Pocket Books, 1940.
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