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  1. By: Thomas, Jack Ward, - Forsman, Eric D., - Lint, Joseph, - Meslow, E. Charles, - Noon, Barry R. (Barry Richard), - Verner, Jared, - United States. Interagency Scientific Committee. - United States. Forest Service. - United States. Bureau of Land Management. - U.S. Fish and Wildlife Service. - United States. National Park Service.
    Publication info: Portland, Or. :[U.S. Department of the Interior, Fish and Wildlife Service],1990.
    Holding Institution: Bureau of Land Management (archive.org)
  2. By: United States. Interagency Scientific Committee.
    Publication info: [Portland, Or.] :U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station,1992.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library