Copper production in developing countries
Subtitle: report of the seminar on the copper industry held in Moscow, 1-6 October 1970.
Series: ID/80 (ID/WG. 74/16)
Publisher: United Nations; H.M.S.O.]
Published: 1972
Place of publication: New York; [London
Language: eng
Notes: At head of title: United Nations Industrial Development Organization, Vienna.