Geological Survey (U.S.), Mudge, M. R., & Earhart, R. L. (1991). Geologic map of the Bob Marshall and Great Bear Wildernesses and adjacent study areas, Montana. The Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.), Melville R. Mudge, and Robert L. Earhart. Geologic Map of the Bob Marshall and Great Bear Wildernesses and Adjacent Study Areas, Montana. Reston, Va.: The Survey, 1991.
MLA (9th ed.) CitationGeological Survey (U.S.), et al. Geologic Map of the Bob Marshall and Great Bear Wildernesses and Adjacent Study Areas, Montana. The Survey, 1991.
Warning: These citations may not always be 100% accurate.