Geological Survey (U.S.) & Earhart, R. L. (1989). Geologic maps, cross section, and photographs of the central part of Glacier National Park, Montana. The Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.) and Robert L. Earhart. Geologic Maps, Cross Section, and Photographs of the Central Part of Glacier National Park, Montana. Reston, Va.: The Survey, 1989.
MLA (9th ed.) CitationGeological Survey (U.S.) and Robert L. Earhart. Geologic Maps, Cross Section, and Photographs of the Central Part of Glacier National Park, Montana. The Survey, 1989.
Warning: These citations may not always be 100% accurate.