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Please read BHL's Acknowledgment of Harmful Content
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  1. By: McLean, Alastair. - Nicholson, H. H. - Canada. Department of Agriculture.
    Edition: Rev. ed. 1966.
    Publication info: Ottawa, Canada Department of Agriculture, 1966
    Holding Institution: Agriculture and Agri-Food Canada (AAFC)
    Subjects: Botany  British Columbia  Stock poisoning plants