Working in groups a communication manual for leaders and participants in task-oriented groups
| Egile nagusia: | |
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| Beste egile batzuk: | |
| Formatua: | Liburua |
| Hizkuntza: | ingelesa |
| Argitaratua: |
Lincolnwood, Ill.
National Textbook
c1976.
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| Gaiak: |