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  1. By: Ayers, John C. (John Carr), - Chandler, David C. (David Culbertson), - University of Michigan. Great Lakes Research Division.
    Publication info: Ann Arbor, Mich, University of Michigan, 1967
    Holding Institution: University of Michigan
    Subjects: Freshwater biology  Freshwater ecology  Limnology  Michigan, Lake  
  2. By: Johnson, R. Roy (Raymond Roy), - Carothers, Steven W. (Steven Warren),
    Publication info: [S.l.], Eisenhower Consortium for Western Environmental Forestry Research, 1982
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Freshwater ecology  Wetlands  
  3. By: Columbia Basin Task Force. - Chen, Glenn K. - United States. Forest Service. - United States. Forest Service. Pacific Northwest Region.
    Publication info: [Portland, Or.?], United States Department of Agriculture, Forest Service, Pacific Nortwest Region Intermountain Region, Northern Region, [1994]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Columbia River  Columbia River Watershed  Environmental monitoring  Fisheries  Freshwater ecology  Monitoring  Water quality biological assessment  
  4. By: Massachusetts. Executive Office of Environmental Affairs. - Massachusetts. Natural Heritage & Endangered Species Program.
    Publication info: Westborough, Mass, Massachusetts Division of Fisheries and Wildlife, c2003
    Holding Institution: UMass Amherst Libraries
    Subjects: Biodiversity conservation  Freshwater biology  Freshwater ecology  Massachusetts  
  5. By: Stantec Consulting Ltd. - Alberta. Alberta Environment.
    Publication info: [Edmonton], Alberta Environment, 2005
    Holding Institution: University of Alberta Library
    Subjects: Alberta  Aquatic ecology  Environmental monitoring  Freshwater ecology  Standards  Water quality