Citazione Stile APA (7a Edizione)
Carnegie, D. (1956). How to develop self-confidence and influence people by public speaking. Cedar Books.
Citazione stile Chigago Style (17a edizione)
Carnegie, Dale. How to Develop Self-confidence and Influence People by Public Speaking. London: Cedar Books, 1956.
Citatione MLA (9a ed.)
Carnegie, Dale. How to Develop Self-confidence and Influence People by Public Speaking. Cedar Books, 1956.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.