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  1. 1

    Eco-agriculture food first farming : theory and practice por Kiley-Worthington, Marthe

    Publicado 1993
    Libro

    Eco-agriculture food first farming : theory and practice
  2. 2

    Crop-livestock interaction in Sub-Saharan Africa por McIntire, John 1950-

    Publicado 1992
    Libro

    Crop-livestock interaction in Sub-Saharan Africa

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