@book{27832,
	author = {Herold, Paul George, and Heyl, George Richard,},
	title = {Kaolin deposits of southern Pike County, Arkansas,},
	year = {1942.},
	series = {Arkansas.  Geological Survey, 1923-      Bulletin 7},
	address = {Little Rock,},
	note = {At head of title: State of Arkansas Geological Survey, Richard J. Anderson, acting state geologist.}
}