@book{23895,
	author = {Orr, Elizabeth L. and Orr, William N., and ebrary, Inc.},
	title = {Oregon geology},
	publisher = {Oregon State University Press,},
	year = {c2012.},
	address = {Corvallis :},
	edition = {6th ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10695256}
}