A study on the effect of classroom instruction in vocational agriculture on field laboratory projects [microform]
| المؤلف الرئيسي: | |
|---|---|
| التنسيق: | Visual Material | 
| اللغة: | English | 
| منشور في: | Quezon City
          Photoduplication Service, University of the Philippines Library
    
        1975. | 
| الموضوعات: |