Chicago

Tunnock, Scott, and United States. Forest Service. Northern Region. State & Private Forestry. 1975. Impact of Egg Viability, Egg Parasitism, and Virus On 1975 Douglas-Fir Tussock Moth Defoliation Potential In the Lower Flathead Valley, Montana. : Missoula, MT. : Forest Environmental Protection, USDA, Forest Service, Northern Region, State & Private Forestry.