Geological Society of America. Coal Geology Division, Dapples, E. C., & Hopkins, M. E. (1969). Environments of coal deposition. Geological Society of America.
Chicago Style (17th ed.) CitationGeological Society of America. Coal Geology Division, Edward C. Dapples, and M. E. Hopkins. Environments of Coal Deposition. Boulder, Colo.: Geological Society of America, 1969.
MLA (9th ed.) CitationGeological Society of America. Coal Geology Division, et al. Environments of Coal Deposition. Geological Society of America, 1969.
Warning: These citations may not always be 100% accurate.