Dale Carnegie. (2011). How to develop self confidence and influence people by public speaking. Harmony books.
Chicago-стиль цитированияDale Carnegie. How to Develop Self Confidence and Influence People by Public Speaking. Kozhikode: Harmony books, 2011.
MLA-цитированиеDale Carnegie. How to Develop Self Confidence and Influence People by Public Speaking. Harmony books, 2011.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.