@book{24838,
	author = {Darton, Nelson Horatio,},
	title = {Structural materials in parts of Oregon and Washington /},
	publisher = {Govt. Print. Off.,},
	year = {1909.},
	series = {U.S. Geological survey. Bulletin 387},
	address = {Washington,},
	note = {Issued also as House doc. 1547, 60th Cong., 2d sess.}
}