@book{27877,
	author = {Petsch, Bruno Carl,},
	title = {The Medicine Butte anticline,},
	publisher = {University of South Dakota,},
	year = {1942.},
	series = {South Dakota Geological Survey. Report of investigations,},
	address = {Vermillion, S.D.,},
	note = {At head of title: State of South Dakota, Harlan J. Bushfield, Governor. State Geological Survey, E. P. Rothrock, State Geologist.}
}