Effective presentation skills
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Menlo Park, Calif.
Crisp Publications
c1993.
|
| Rhifyn: | Rev. ed. |
| Cyfres: | The Fifty-minute series book
|
| Pynciau: |
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Menlo Park, Calif.
Crisp Publications
c1993.
|
| Rhifyn: | Rev. ed. |
| Cyfres: | The Fifty-minute series book
|
| Pynciau: |