APA (7th ed.) Citation

United States. Forest Service. (1970). Portion of the Bob Marshall Wilderness Area, Lewis & Clark and Flathead National Forests. [U.S. Forest Service].

Chicago Style (17th ed.) Citation

United States. Forest Service. Portion of the Bob Marshall Wilderness Area, Lewis & Clark and Flathead National Forests. [Washington, D.C.?]: [U.S. Forest Service], 1970.

MLA (9th ed.) Citation

United States. Forest Service. Portion of the Bob Marshall Wilderness Area, Lewis & Clark and Flathead National Forests. [U.S. Forest Service], 1970.