@book{27628,
	author = {Yancey, H. F. and Geer, Max Richard, and United States.},
	title = {Analyses and other properties of Oregon coals as related to their utilization,},
	year = {1940]},
	series = {Oregon. State Dept. of Geology and Mineral Industries. Bulletin},
	address = {[Portland,},
	note = {At head of title: State of Oregon. Department of Geology and Mineral Industries. In cooperation with the Bureau of Mines, United States Department of the Interior.}
}