@book{4169,
	author = {Cameron, Eugene N. and Society of Economic Geologists (U.S.)},
	title = {The Mineral Position of the United States; 1975-2000.},
	publisher = {Published for the Society of Economic Geologists Foundation by the University of Wisconsin Press},
	year = {[1973]},
	address = {[Madison]},
	note = {Papers presented at a symposium, sponsored by the Society of Economic Geologists, held Nov. 15, 1972, in Minneapolis.}
}