Carnegie, D. (1956). How to develop self-confidence and influence people by public speaking. Pocket Books.
Chicago-viite (17. p.)Carnegie, Dale. How to Develop Self-confidence and Influence People by Public Speaking. Delhi: Pocket Books, 1956.
MLA-viite (8. p.)Carnegie, Dale. How to Develop Self-confidence and Influence People by Public Speaking. Pocket Books, 1956.
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