@book{24112,
	author = {Wright, Charles Will,},
	title = {The Porcupine placer district, Alaska,},
	publisher = {Govt. Print. Off.,},
	year = {1904.},
	series = {U.S. Geological survey. Bulletin},
	address = {Washington,},
	note = {Subject series: A, Economic geology, 37; B, Discriptive geology, 42.}
}