Carnegie, D. (1956). How to develop self-confidence and influence people by public speaking. Cedar Books.
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Chicago-čujuhus (17. p.)
Carnegie, Dale. How to Develop Self-confidence and Influence People by Public Speaking. London: Cedar Books, 1956.
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MLA-čujuhus (9. p.)
Carnegie, Dale. How to Develop Self-confidence and Influence People by Public Speaking. Cedar Books, 1956.
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