@book{25357,
	author = {Morse, William Clifford, and Foerste, A. F.},
	title = {Preliminary report on the Waverlian formations of east central Kentucky and their economic values.},
	publisher = {Printed by the Interstate publishing co.,},
	year = {1912.},
	series = {Kentucky. Geological survey. Bulletin},
	address = {[n.p.]}
}