@book{27886,
	author = {Lamborn, Raymond E. and Geological Survey of Ohio.},
	title = {The coal beds of western Carroll County and The coal beds in southeastern Mahoning County /},
	editor = {(F.J. Heer)},
	publisher = {Geological Survey of Ohio,},
	year = {1942},
	series = {Bulletin ;},
	address = {Columbus, Ohio :}
}