APA (7th ed.) Citation

Geological Survey (U.S.), Mudge, M. R., & Earhart, R. L. (1991). Bedrock geologic map of part of the disturbed belt south and east of Glacier National Park, Montana. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Melville R. Mudge, and Robert L. Earhart. Bedrock Geologic Map of Part of the Disturbed Belt South and East of Glacier National Park, Montana. Reston, Va.: The Survey, 1991.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Bedrock Geologic Map of Part of the Disturbed Belt South and East of Glacier National Park, Montana. The Survey, 1991.