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  1. By: Gilbert, Joseph Henry,
    Publication info: London, Harrison, 1891
    Holding Institution: University of Toronto - Gerstein Science Information Centre
    Subjects: Agriculture  Rothamsted  
  2. By: Lawes, J. B. (John Bennet),
    Publication info: Edingurgh, Blackwood, 1895
    Holding Institution: University of Toronto - Gerstein Science Information Centre
    Subjects: Agriculture  Experimental Station  Great Britain  Rothamsted  
  3. By: Weir, Wilbert Walter,
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1926
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: AgSpace  crop production  Crop rotation  crop yield  experiment stations  Fertilizers  Internet resource  land management  long term experiments  research methods  Rothamsted  Soil management  Soil productivity  Yields