DALE CARNEGIE. (2022). THE ART OF PUBLIC SPEAKING (2022.). RUPA PUBLICATIONS.
Lua i Stíl Chicago (17ú heag.)DALE CARNEGIE. THE ART OF PUBLIC SPEAKING. 2022. NOIDA: RUPA PUBLICATIONS, 2022.
Lua MLA (9ú heag.)DALE CARNEGIE. THE ART OF PUBLIC SPEAKING. 2022. RUPA PUBLICATIONS, 2022.
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