Showing 1 - 10 results of 52 for search 'Philippines. National Irrigation Administration', query time: 0.10s Refine Results
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    Communal gravity systems four case studies

    Published 1980
    Book
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    Second Allah Irrigation Project feasibility report.

    Published 1980
    Book
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    Communal gravity systems four case studies by De los Reyes, Romana P.

    Published 1980
    Book

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