@book{26371,
	author = {Leonard, Arthur Gray, and Babcock, E. J. and University of North Dakota.},
	title = {The lignite deposits of North Dakota,},
	publisher = {Published for the State Geological Survey [Normanden Publishing Co.]},
	year = {1925.},
	series = {North Dakota. Geological Survey. Bulletin},
	address = {[Grand Forks]},
	note = {In cooperation with the School of Mines, College of Engineering, University of North Dakota.}
}