Hargreaves, D. World index of strategic minerals : production, exploitation, and risk / D. Hargreaves and S. Fromson. - New York : Facts on File, 1983. - xiii, 300 p. : ill. ; 31 cm. Bibliography: p. [293]-300. ISBN: 0566004895 LCCN: 82015435 Subjects--Topical Terms: Mineral industriesMaden endüstrisi LC Class. No.: HD9506.A2 / H27 1983 Dewey Class. No.: 338.2 / HAR 1983