@book{261973,
	author = {United States. and Siehl, George H.},
	title = {Issues related to surface mining :},
	year = {1971.},
	series = {[Committee publication] serial, 92d Congress Congress [sic] ;},
	address = {[Washington, D.C.],},
	note = {Committee print, 92d Congress, 1st session.}
}