@book{26727,
	author = {Miser, Hugh D. and Purdue, A. H.},
	title = {Geology of the De Queen and Caddo gap quadrangles, Arkansas,},
	publisher = {U.S. Govt print. off.,},
	year = {1929.},
	series = {U. S.  Geological survey.  Bulletin 808},
	address = {Washington,},
	note = {At head of title: Dept. of the interior.}
}