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  1. 11
    nork Barker, Randolph
    Argitaratua 1976
    Visual Material

    The probable impact of the seed-fertilizer revolution on grain production and on farm labor requirements [microform]
  2. 12
    nork Barker, Randolph
    Argitaratua 1974
    Liburua

    Some economic issues to consider for would-be producers of rice under General Order 47
  3. 13
    nork Barker, Randolph
    Argitaratua 1972
    Download the full-text here
    Liburua

    The probable impact of the seed-fertilizer revolution on grain production and on farm labor requirements
  4. 14
    Liburua

    The probable impact of the seed-fertilizer revolution on grain production and on farm labor requirements
  5. 15
    Argitaratua 1971
    Liburua

    Employment and technological change in Philippine agriculture
  6. 16
    nork Barker, Randolph
    Argitaratua 1970
    Liburua

    Research relating to the economics of irrigation in rice production
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