Factors associated with productivity in selected Philippine communities
| Главный автор: | |
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| Формат: | |
| Язык: | English |
| Опубликовано: |
Quezon City
NSDB-UP Integrated Research Program
1976.
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| Серии: | Socio-Technological bulletin, Supplement series
no. 4, 1976 |
| Предметы: |