Carnegie, D. (1956). How to develop self-confidence and influence people by public speaking.
Chicago Style aipamenaCarnegie, Dale. How to Develop Self-confidence and Influence People by Public Speaking. NY, Pocket Books, 1956.
MLA aipamenaCarnegie, Dale. How to Develop Self-confidence and Influence People by Public Speaking. 1956.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.