The relative effectiveness of four types of extension publications [microform]
| Glavni autor: | |
|---|---|
| Format: | Visual Material |
| Izdano: |
Quezon City
Photoduplication Service
University of the Philippines Library, 1977.
|
| Teme: |
| Glavni autor: | |
|---|---|
| Format: | Visual Material |
| Izdano: |
Quezon City
Photoduplication Service
University of the Philippines Library, 1977.
|
| Teme: |