Carnegie, D. (2012). How to Win Friends & Influence People. Vermilion.
Dyfyniad Arddull ChicagoCarnegie, Dale. How to Win Friends & Influence People. London: Vermilion, 2012.
Dyfyniad MLACarnegie, Dale. How to Win Friends & Influence People. Vermilion, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.