Impact of multiple cropping in the Chiang Mai Valley
| Главный автор: | |
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| Формат: | |
| Язык: | English |
| Опубликовано: |
Quezon City
Council for Asian Manpower Studies, University of the Philippines
1978.
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| Серии: | Discussion paper series
no.78-18 |
| Предметы: |