Carnegie, D. (2006). How to win friends and influence people. Vermilion.
Citazione stile Chigago Style (17a edizione)Carnegie, Dale. How to Win Friends and Influence People. London: Vermilion, 2006.
Citatione MLA (9a ed.)Carnegie, Dale. How to Win Friends and Influence People. Vermilion, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.