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    Waste treatment in agriculture / by Hobson, P. N.

    Published 1977
    Book
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    Biogás : recuperación de energía de los excrementos animales / by Taiganides, E. Paul

    Published 1981
    Book
  4. 4
  5. 5

    Dimensionamiento y diseño de un digestor calefaccionario para instalar en un tambo. by Díaz, Roberto R.

    Book Chapter