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  1. By: Leopold, Aldo, - Sporting Arms and Ammunition Manufacturers' Institute.
    Publication info: 1929
    Holding Institution: University Library, University of Illinois Urbana Champaign
  2. By: Leopold, Aldo, - Sporting Arms and Ammunition Manufacturers' Institute.
    Publication info: Madison, Wis, [Democrat printing company, printers], 1931
    Holding Institution: Prelinger Library
  1. By: Leopold, Aldo, - Ball, John N.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 45
    Issue: 7
    Date: 1931-10
    Page Range: 162--167
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Leopold, Aldo,
    Type: Article
    In: The Canadian field-naturalist
    Volume: 51
    Issue: 8
    Date: 1937-11
    Page Range: 126--126
    Publication Info: Ottawa Ottawa Field-Naturalists' Club