Comparative economic analysis of low-lift (surface) and tubewell irrigation projects in the Philippines [microform]
| Päätekijä: | |
|---|---|
| Aineistotyyppi: | Visual Material |
| Kieli: | English |
| Julkaistu: |
Quezon City
Photoduplication Service, University of the Philippines
1976.
|
| Aiheet: |