Relationship of professional and technical background to inservice training needs of gardening teachers and elementary agriculture teachers of selected schools in Laguna, Philippines, 1972-1973 [microform].
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| 格式: | Visual Material | 
| 语言: | English | 
| 出版: | 
        Quezon City
          Photoduplication Service, University of the Philippines Library
    
        1977.
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| 主题: |