Effective presentation skills
| Egile nagusia: | |
|---|---|
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
Menlo Park, Calif.
Crisp Publications
c1993.
|
| Edizioa: | Rev. ed. |
| Saila: | The Fifty-minute series book
|
| Gaiak: |