@book{27906,
	author = {Bowsher, Arthur Leroy, and Jewett, John Mark,},
	title = {Coal resources of the Douglas group in east-central Kansas /},
	publisher = {Kansas State Printing Plant,},
	year = {1943.},
	series = {Kansas. State geological survey. Bulletin},
	address = {Topeka :},
	note = {University of Kansas publications. September 1943.}
}