Brown, D. M. (1952). Lignite resources of South Dakota. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationBrown, Donald Marvin. Lignite Resources of South Dakota. Washington, D.C.: United States Department of the Interior, Geological Survey, 1952.
MLA (9th ed.) CitationBrown, Donald Marvin. Lignite Resources of South Dakota. United States Department of the Interior, Geological Survey, 1952.
Warning: These citations may not always be 100% accurate.