Dyfyniad APA

Dale Carnegie. (2011). How to develop self confidence and influence people by public speaking. Harmony books.

Dyfyniad Arddull Chicago

Dale Carnegie. How to Develop Self Confidence and Influence People by Public Speaking. Kozhikode: Harmony books, 2011.

Dyfyniad MLA

Dale Carnegie. How to Develop Self Confidence and Influence People by Public Speaking. Harmony books, 2011.

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