@book{25131,
	author = {Martin, G. C. and Katz, Frank J.},
	title = {Geology and coal fields of the lower Matanuska valley, Alaska,},
	publisher = {Govt. print. off.,},
	year = {1912.},
	series = {United States. Geological survey. Bulletin 500},
	address = {Washington,},
	note = {All maps but one in pocket on back-cover.}
}