APA

Hamel, D., Oakes, R., Hothem, R., & States. Forest Service. Northern Region. State & Private Forestry, U. (1977). Potential for infestation by mountain pine beetle in lodgepole pine stands, Hungry Horse District, Flathead National Forest, 1977. : Missoula, MT. : Forest Insect & Disease Management, USDA, Forest Service, Northern Region, State & Private Forestry.