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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Beak Consultants. - Ontario. Phytotoxicology Section.
    Publication info: Brampton, Ont, The Section, 1993
    Holding Institution: Ontario Ministry of the Environment
  2. By: Concord Scientific Corporation - Beak Consultants. - Ontario. Hazardous Contaminants Branch.
    Publication info: [Toronto], Environment Ontario, 1992
    Holding Institution: Ontario Ministry of the Environment
  3. By: Ontario. Ministry of the Environment. - Beak Consultants. - Paul Theil Associates - Toronto Area Watershed Management Strategy Steering Committee (Ont.)
    Publication info: [Toronto, Ont.], Environment Ontario, 1991
    Holding Institution: Ontario Ministry of the Environment