@book{27442,
	author = {Mitchell, David Ray, and McCabe, Louis Cordell, and Illinois State Geological Survey},
	title = {Washability characteristics of Illinois coal screenings,},
	year = {1937.},
	address = {Urbana, Illinois,},
	note = {At head of title: State of Illinois. Department of Registration and Education. Division of the State Geological Survey.}
}