Arama Sonuçları - "Irrigation Philippines"
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A method of determining the net duty of irrigation water for lowland rice
Baskı/Yayın Bilgisi 1948Tez -
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Economic evaluation of representative communal irrigation projects under the grants-in-aid scheme
Baskı/Yayın Bilgisi 1974Kitap -
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Comparative economic analysis of low-lift (surface) and tubewell irrigation projects in the Philippines [microform]
Baskı/Yayın Bilgisi 1976Visual Material -
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Produce more dry season crops by improved irrigation methods level furrow irrigation for the Philippines
Baskı/Yayın Bilgisi 1959Kitap