Chicago

McGregor, Mark D., Dennis R Hamel, Rudolph C Lood, and United States. Forest Service. Northern Region. State & Private Forestry. 1976. Evaluation of Mountain Pine Beetle Infestations, Gallatin Ranger District, Gallatin National Forest, Montana, 1975. : Missoula, MT. : Forest Environmental Protection, USDA, Forest Service, Northern Region, State & Private Forestry.