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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Schenbeck, Greg L. - Myhre, Richard J. - United States. Forest Pest Management. Methods Application Group.
    Publication info: Fort Collins, Colo, U.S. Dept. of Agriculture, Forest Service, Forest Pest Management, Methods Application Group, [1986]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Aerial photography  Buffalo Gap National Grassland  Buffalo Gap National Grassland (S.D.)  Cynomys ludovicianus  Prairie dogs  Remote sensing  South Dakota  Wildlife management