Darton, N. H. (1906). Geology of the Bighorn Mountains. [Department of the Interior, United States Geological Survey].
Chicago Style (17th ed.) CitationDarton, Nelson Horatio. Geology of the Bighorn Mountains. [Washington]: [Department of the Interior, United States Geological Survey], 1906.
MLA (9th ed.) CitationDarton, Nelson Horatio. Geology of the Bighorn Mountains. [Department of the Interior, United States Geological Survey], 1906.
Warning: These citations may not always be 100% accurate.