McGregor, Mark D., Robert D Oakes, Hubert E Meyer, United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management, and United States. Forest Service. Northern Region. State & Private Forestry. 1983. Status of Mountain Pine Beetle, Northern Region, 1982. : [Missoula, Mont.?] : U.S. Dept. of Agriculture, Forest Service, Northern Region, State & Private Forestry.