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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Canada. Agriculture, Department Of. Chemistry Division. - Ruck, J. A.
    Publication info: [Ottawa, Queen's Printer], 1956
    Holding Institution: University of Toronto - Gerstein Science Information Centre
  2. By: Ruck, J. A. - Canada. Department of Agriculture. Research Branch.
    Publication info: Ottawa, Canada Department of Agriculture, 1963
    Holding Institution: Agriculture and Agri-Food Canada (AAFC)