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Modernization and mechanization of salt industries based on seawater in developing countries : report of Expert group meeting on modernization and mechanization of salt industries, Rome, 25-29 September 1968
- United Nations Industrial Development Organization,
- 1969.
- Vienna :
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Report of the interregional symposium on metal-working industries in developing countries, Moscow, 7 September-6 October 1966
- United Nations Industrial Development Organization,
- 1968.
- Vienna :