@book{30029,
	author = {Denson, N. M. and Gill, James R.},
	title = {Uranium-bearing lignite and carbonaceous shale in the southwestern part of the Williston Basin;},
	publisher = {U.S. Govt. Print. Off.,},
	year = {1965.},
	address = {Washington,},
	note = {Prepared on behalf of the U. S. Atomic Energy Commission.}
}