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  1. Ontario hardwood decline survey, 1989 and 1990 / report prepared for Phytotoxicology Section, Air Resources Branch, Ontario Ministry of Environment and Energy ; report prepared by BEAK Consultants.
    By: Beak Consultants. - Ontario.
    Publication info: Brampton, Ont. :The Section,1993.
    Contributed by: Ontario Ministry of the Environment (archive.org)
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  2. Phytotoxicology assessment survey in the vicinity of the Shell, PetroCanada and Imperial Oil petroleum tank farms, Toronto - 1991 / [report prepared by J. Craig Kinch].
    By: Kinch, James Craig, - Ontario.
    Publication info: [Toronto] :Phytotoxicology Section, Ontario Ministry of Environment and Energy,1993.
    Contributed by: Ontario Ministry of the Environment (archive.org)
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  3. Phytotoxicology surveys conducted in the town of Elmira : Uniroyal Corporation, 1989, Sulco Canada Colours Ltd., 1990, Varnicolour Chemical Ltd., 1990 : report / prepared by W.D. McIlveen.
    By: McIlveen, W. D. - Ontario.
    Publication info: [Toronto] :Phytotoxicology Section, Ontario Ministry of Environment and Energy,1993.
    Contributed by: Ontario Ministry of the Environment (archive.org)
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  4. Phytotoxicology Section investigation in the vicinity of Ethyl Corporation, Corunna, Ontario, August 23, 1989 : report / prepared by Phytotoxicology Section, Air Resources Branch, Ontario Ministry of the Environment.
    By: Ontario.
    Publication info: [Toronto] :The Section,1991.
    Contributed by: Ontario Ministry of the Environment (archive.org)
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