The relative effectiveness of four types of extension publications [microform]
| 第一著者: | |
|---|---|
| フォーマット: | Visual Material |
| 出版事項: |
Quezon City
Photoduplication Service
University of the Philippines Library, 1977.
|
| 主題: |
| 第一著者: | |
|---|---|
| フォーマット: | Visual Material |
| 出版事項: |
Quezon City
Photoduplication Service
University of the Philippines Library, 1977.
|
| 主題: |