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  1. Crop production risks in the Canadian prairie region in relation to climate and land resources /
    By: Dumanski, J. - Kirkwood, V. - Canada.
    Publication info: [Ottawa] :Research Branch, Agriculture Canada,1988.
    Contributed by: Agriculture and Agri-Food Canada (archive.org)
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  2. Stress indices for spring wheat on the Canadian prairies /
    By: Bootsma, A. - De Jong, Reinder. - Dumanski, J. - Canada. - Canada.
    Publication info: Ottawa :Research Branch, Agriculture Canada,1992.
    Contributed by: Agriculture and Agri-Food Canada (archive.org)
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