@book{27446,
	author = {Callaghan, Eugene, and Buddington, A. F. and Oregon.},
	title = {Metalliferous mineral deposits of the Cascade range in Oregon,},
	publisher = {U.S. Govt. Print. Off.,},
	year = {1938.},
	series = {U.S. Geological survey. Bulletin 893},
	address = {Washington,},
	note = {At head of title: United States Department of the Interior.}
}