United States. Forest Service, United States. Forest Service. Northern Region, & Geometronics Service Center (U.S.). (1981). Flathead National Forest (north half) Montana, 1980: Forest visitors map (Updated 1980.). The Service.
Chicago Style (17th ed.) CitationUnited States. Forest Service, United States. Forest Service. Northern Region, and Geometronics Service Center (U.S.). Flathead National Forest (north Half) Montana, 1980: Forest Visitors Map. Updated 1980. Missoula, Mont.: The Service, 1981.
MLA (9th ed.) CitationUnited States. Forest Service, et al. Flathead National Forest (north Half) Montana, 1980: Forest Visitors Map. Updated 1980. The Service, 1981.
Warning: These citations may not always be 100% accurate.