Dale Carnegie. (2011). How to develop self confidence and influence people by public speaking. Harmony books.
Chicago-stil citatDale Carnegie. How to Develop Self Confidence and Influence People by Public Speaking. Kozhikode: Harmony books, 2011.
MLA-referensDale Carnegie. How to Develop Self Confidence and Influence People by Public Speaking. Harmony books, 2011.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.