@book{27460,
	author = {King, Philip Burke,},
	title = {Geology of the Marathon region, Texas,},
	publisher = {U.S. Govt. print. off.,},
	year = {1938.},
	series = {U. S. Geological survey. Professional paper 187},
	address = {Washington,},
	note = {At head of title: United States Department of the interior.}
}