Dale Carnegie. (2011). How to develop self confidence and influence people by public speaking. Harmony books.
Chicago ZitierstilDale Carnegie. How to Develop Self Confidence and Influence People by Public Speaking. Kozhikode: Harmony books, 2011.
MLA ZitierstilDale Carnegie. How to Develop Self Confidence and Influence People by Public Speaking. Harmony books, 2011.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.