@book{29630,
	author = {Neavel, Richard C.},
	title = {Petrographic and chemical composition of Indiana coals.},
	publisher = {For sale by Geological Survey, Indiana Dept. of Conservation,},
	year = {1961.},
	series = {Indiana. Geological Survey. Bulletin},
	address = {Bloomington :},
	note = {Running title: Composition of Indiana coals.}
}