Browsing Natural Resources by Author "Underwood, P. W."

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Some observations on the impact of western spruce budworm on the Clearwater National Forest, Idaho

Franc, G. C.; Underwood, P. W.; Dewey, Jerald E.; United States. Forest Service. Northern Region. State & Private Forestry (Missoula, MT : USDA Forest Service, Northern Region, Division of State & Private Forestry, 1973)
Western spruce budworm impact evaluation, Yoosa Creek, Clearwater National Forest, Idaho, 1974

Bousfield, Wayne E.; Underwood, P. W.; Lood, Rudolph C.; United States. Forest Service. Northern Region. State & Private Forestry (Missoula, MT. : Forest Environmental Protection, USDA, Forest Service, Northern Region, State & Private Forestry, 1975)
A western spruce budworm impact survey on the Clearwater National Forest

Franc, G. C.; Underwood, P. W.; Dewey, Jerald E.; United States. Forest Service. Northern Region. State & Private Forestry (Missoula, Mont. : USDA Forest Service, Northern Region, State & Private Forestry, 1972)