@book{145712,
	author = {Jackson, Wayne D. and Christiansen, Grey.},
	title = {International strategic minerals inventory summary report--rare-earth oxides},
	publisher = {U.S. G.P.O.},
	year = {1993.},
	series = {U.S. Geological Survey circular},
	address = {Washington},
	note = {"Prepared as a cooperative effort among earth-science and mineral-resource agencies of Australia, Canada, the Federal Republic of Germany, the Republic of South Africa, the United Kingdom, and the United States of America."}
}