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  1. By: Cromarty, Robert William, - University of Alberta. Dept. of Plant Science.
    Publication info: [1960]
    Holding Institution: University of Alberta Library
    Subjects: Soilborne plant pathogens  
  2. By: Ludwig, R. A. (Ralph Antony), - University of Alberta. Department of Field Crops.
    Publication info: [1939]
    Holding Institution: University of Alberta Library
    Subjects: Phytopathogenic microorganisms  Soil microbiology  Soilborne plant pathogens