Showing 1 - 2 results of 2 for search 'Rogg, Helmuth W.', query time: 0.01s Refine Results
  1. 1
    Manual: manejo integrado de plagas cultivos de la amazonía ecuatoriana /
    by Rogg, Helmuth W.
    Published 2001
    Book
  2. 2
    Manual de entomología agrícola de Ecuador /
    by Rogg, Helmuth W.
    Published 2000
    Book
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