Dale Harbison Carnegie was an American writer and lecturer and the developer of famous courses in self-improvement, salesmanship, corporate training, public speaking, and interpersonal skills. Source: wikipedia
Dale Carnegie (duplicate)
Autor*in-Details
- Geboren:
- 23. November 1888
- Gestorben:
- 31. Oktober 1955
Externe Links
Dale Harbison Carnegie was an American writer and lecturer and the developer of famous courses in self-improvement, salesmanship, corporate training, public speaking, and interpersonal skills. Source: wikipedia
