Showing 1 - 3 results of 3 for search 'Villegas, Leopoldo M.', 查询时间: 0.01s Refine Results
  1. 1

    Field demostration its effects on level of knowledge, understanding and ittitudes of farmers about choice of a rice variety and use of fertilizers [microform] 由 Villegas, Leopoldo M.

    出版 1977
    Visual Material

    Field demostration its effects on level of knowledge, understanding and ittitudes of farmers about choice of a rice variety and use of fertilizers [microform]
  2. 2

    Field demonstration its effects on level of knowledge, understanding and attitudes of farmers about choice of a rice variety and use of fertilizers 由 Villegas, Leopoldo M.

    出版 1977
    Visual Material

    Field demonstration its effects on level of knowledge, understanding and attitudes of farmers about choice of a rice variety and use of fertilizers
  3. 3

    Field demonstration its effects on level of knowledge, understanding and attitudes of farmers about choice of a rice variety and use of fertilizers 由 Villegas, Leopoldo M. 1936-

    出版 1966
    Thesis

    Field demonstration its effects on level of knowledge, understanding and attitudes of farmers about choice of a rice variety and use of fertilizers

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