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By: Hadfield, James S. - Johnson, David W. (David Winslow), - United States. Forest Service. Pacific Northwest Region.Edition:Publication info: [Portland, Or.], Dept. of Agriculture, Forest Service, Pacific Northwest Region, 1977Volume: 1977Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: Hadfield, James S. - United States. Forest Service. Pacific Northwest Region.Edition:Publication info: [Portland, Or.], U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Region, 1985Volume: 1985Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: Hadfield, James S. - United States. Forest Service. Pacific Northwest Region.Edition:Publication info: Portland, Or, USDA Forest Service, Pacific Northwest Region Forest Pest Management, 1986Volume: 1986Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: