Geological Survey (U.S.), Wilson, A. B., & Elliott, J. E. (1997). Geologic maps of western and northern parts of Gallatin National Forest, south-central Montana. U.S. Geological Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.), Anna B. Wilson, and James E. Elliott. Geologic Maps of Western and Northern Parts of Gallatin National Forest, South-central Montana. [Reston, Va.]: U.S. Geological Survey, 1997.
MLA (9th ed.) CitationGeological Survey (U.S.), et al. Geologic Maps of Western and Northern Parts of Gallatin National Forest, South-central Montana. U.S. Geological Survey, 1997.
Warning: These citations may not always be 100% accurate.