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2
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Water management in Philippine irrigation systems : research and operations : papers presented at the Water management workshop, December 11-14, 1972, Los Baños / [contrib. by S.K. Datta...et al.].
- 853
- International Rice Research Institute,
- 1973.
- Los Baños :
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Major research in upland rice / [contrib. by Surajit K. De Datta...et al.].
- International Rice Research Institute,
- 1975.
- Los Baños :