Mineral processing in developing countries.
Contributors: Zorn, Stephen.; United Nations Industrial Development Organization.
Publisher: United Nations
Published: 1980
Place of publication: New York
Language: eng
Number of pages: 143
Subjects: Mineral industries -- Developing countries
Notes: At head of title: United Nations Industrial Development Organization.
Prepared by Marian Radetzki and Stephen Zorn.
"ID/253"--P. 4 of cover.
"United Nations publication sales no. E.80.II.B.5"--P. 4 of cover.