@book{30314,
	author = {Hill, Thelma P., and Werner, Marian A.,},
	title = {Chemical composition of sedimentary rocks in Colorado, Kansas, Montana, Nebraska, North Dakota, South Dakota, and Wyoming.},
	publisher = {U.S. Govt. Print. Off.,},
	year = {1967.},
	address = {Washington,},
	note = {Part of illustrative matter folded in pocket.}
}