Choe, Boum Jong The metals price boom of 1987-89 : the role of supply disruptions and stock changes / Boum-Jong Choe - Washington, D. C. : World Bank (WB) , 1990 - 21p. ; 28 cm. - Policy, research, and external affairs working papers ; WPS 542 . Includes bibliographical references and index. Subjects--Topical Terms: Metals--PricesMetal trade Gov. Doc. Class. No.: UN WB IED WP-542