@book{26196,
	author = {Ries, Heinrich,},
	title = {The clay deposits of Kentucky.},
	publisher = {The Kentucky Geological survey,},
	year = {1922.},
	series = {Kentucky. Geological survey, 1920-  Series 6. [Geologic reports]},
	address = {Frankfort, Ky.,},
	edition = {1st ed.,}
}