Chicago

Bousfield, Wayne E., G. C Franc, and United States. Forest Service. Northern Region. State & Private Forestry. 1979. Remeasurement of Western Spruce Budworm Damage Areas On the Clearwater National Forest, Idaho, 1978. : Missoula, MT. : Forest Insect & Disease Management, USDA, Forest Service, Northern Region, State & Private Forestry.