An appraisal of the systems-and-procedures in agricultural extension applied to rice farmers in Northern Samar [microform]
| מחבר ראשי: | |
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| פורמט: | Visual Material |
| שפה: | English |
| יצא לאור: |
Quezon City
Photoduplication Service, University of the Philippines Library
1974.
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| נושאים: |