Dyfyniad APA

Carnegie, D. (1981). How to win friends and influence people (Rev. ed.). Pocket Books.

Dyfyniad Arddull Chicago

Carnegie, Dale. How to Win Friends and Influence People. Rev. ed. New York: Pocket Books, 1981.

Dyfyniad MLA

Carnegie, Dale. How to Win Friends and Influence People. Rev. ed. Pocket Books, 1981.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.