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  1. 1
    Visual Material

    Effects of the different tillage techniques on the efficiency of weed control and nitrogen uptake in transplanted rice [microform].
  2. 2
    por Castro, Diosdado V. 1934-
    Publicado 1977
    Visual Material

    The Filipino graduates of the Rice Production Training Program a follow-up study [microform]
  3. 3
    por Castro, Diosdado V.
    Publicado 1977
    Visual Material

    The Filipino graduates of the Rice Production Training Program a follow-up study
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