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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Schladweiler, Philip. - Weigand, John P.
    Publication info: Helena, Mont, Wildlife Division, Montana Dept. of Fish, Wildlife, and Parks, [1983]
    Holding Institution: Montana State Library
    Subjects: Chlorohydrocarbons  Environmental aspects  Indicators (Biology)  Montana  Pesticides and wildlife