検索結果 - Villegas, Leopoldo M.

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  1. 1

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

    出版事項 1977
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  2. 2

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

    出版事項 1977
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  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 著者: Villegas, Leopoldo M. 1936-

    出版事項 1966
    学位論文


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