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  1. Acidic precipitation in Ontario study (APIOS) project summaries : report prepared by Acidic Precipitation Office, Ontario Ministry of the Environment.
    By: Ontario.
    Publication info: [Toronto, Ont.] :Ontario Environment,1992-
    Contributed by: Ontario Ministry of the Environment (archive.org)
    Subjects: Acid pollution of rivers, lakes, etc  Acid precipitation (Meteorology)  Ontario  Periodicals  
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  2. The Acidification of Ontario lakes : an assessment of their sensitivity and current status with respect to biological damage / prepared by B.P. Neary ... [et al.].
    By: Neary, B.P. - Ontario.
    Publication info: [Toronto] :Environment Ontario,1990.
    Contributed by: Ontario Ministry of the Environment (archive.org)
    Subjects: Acid pollution of rivers, lakes, etc  Acid rain  Ontario  
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  3. Annual program report.
    By: Acidic Precipitation in Ontario Study - Ontario.
    Publication info: [Toronto] :Ministry of the Environment, A.P.I.O.S. Coordination Office.
    Contributed by: Ontario Ministry of the Environment (archive.org)
    Subjects: Acid pollution of rivers, lakes, etc  Acid precipitation (Meteorology)  Acid rain  Acidic Precipitation in Ontario Study  Ontario  
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  4. Extraction of zygnematacean zygospores from lake sediments and their potential as paleo-indicators of lake acidification : R.A.C. Project No. 464G / prepared for Environment Ontario by P.A. Zippi ... [et al.].
    By: Zippi, P. A. - Ontario Water Resources Commission. - Ontario.
    Publication info: [Toronto] :Environment Ontario,1991.
    Contributed by: Ontario Ministry of the Environment (archive.org)
    Subjects: Acid pollution of rivers, lakes, etc  Lake sediments  Ontario  Palynology  Zygnemataceae  
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