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  1. By: Ignatieff, Vladimir, - University of Alberta. Department of Soils.
    Publication info: Edmonton, Alberta, University of Alberta, [1932]
    Holding Institution: University of Alberta Library
    Subjects: Alberta  Crop rotation  Edmonton  Soil biology  
  2. By: Bahan, Walter George. - University of Alberta. Department of Geology.
    Publication info: Edmonton, Alberta, [University of Alberta], 1951
    Holding Institution: University of Alberta Library
    Subjects: Alberta  Microorganisms  Micropaleontology  Soil biology  
  3. By: United States. Natural Resources Conservation Service.
    Publication info: [Washington, D.C.?], U.S. Dept. of Agriculture, Natural Resources Conservation Service, [1999]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Soil animals  Soil biology  Soil microbiology  United States