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By: Farkas, Martha Judit, - Surgeoner, Gordon A.Edition:Publication info: [Ontario], Ministry of the Environment, 1990Volume:Series:Holding Institution: Ontario Ministry of the EnvironmentSubjects:BHL Collections:
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By: Surgeoner, Gordon A. - Farkas, Martha Judit, - Ontario. Aquatic Criteria Development Committee.Edition:Publication info: Guelph, Ont, Dept. of Environmental Biology, University of Guelph, [1989]Volume:Series:Holding Institution: Ontario Ministry of the EnvironmentSubjects:BHL Collections: