Triassic- jurassic stratigraphy of the culpeper and barboursville basins virginia and maryland - Lee, K. Y.; Froelich, A. J. (Washington : United States Government Printing Office., 1989)
Prepared in cooperation with the Illinois Department of Natural Resources, Office of Water Resources and Du Page County, Department of Environmental Concerns
Includes bibliographical references (p. 34-35)
Keywords: Triassi -- Survey -- Maryland