Dale Carnegie. (2011). How to develop self confidence and influence people by public speaking. Harmony books.
Chicago Stili AlıntıDale Carnegie. How to Develop Self Confidence and Influence People by Public Speaking. Kozhikode: Harmony books, 2011.
MLA AlıntıDale Carnegie. How to Develop Self Confidence and Influence People by Public Speaking. Harmony books, 2011.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..