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  1. By: Langelier, G. A. (Gus A.) - Dominion Experimental Farms and Stations (Canada)
    Publication info: Ottawa, T. Mulvey, 1920
    Holding Institution: Canadiana.org
  1. By: Langelier, G. A. (Gus A.)
    Type: Article
    In: The Canadian field-naturalist
    Volume: 53
    Issue: 8
    Date: 1939-11
    Page Range: 121--122
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Langelier, G. A. (Gus A.)
    Type: Article
    In: The Canadian field-naturalist
    Volume: 49
    Issue: 7
    Date: 1935-10
    Page Range: 124--124
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Langelier, G. A. (Gus A.)
    Type: Article
    In: The Canadian field-naturalist
    Volume: 37
    Issue: 7
    Date: 1923-10
    Page Range: 139--139
    Publication Info: Ottawa Ottawa Field-Naturalists' Club