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  1. Cover Image

    Manual de normas y procedimientos en supervisión de asistencia técnica agrícola by Polanía Fierro, F.

    Published 1977
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    Libro
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    Training needs of the agricultural assistants (Practicos agricolas) in the Colombian Agricultural Institute (ICA). by Polanía Fierro, F.

    Published 2018
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    Tesis
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    Aspectos económicos del cultivo del sorgo. by Polanía Fierro, F.

    Published 2018
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    Capítulo de libro

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