00284nam a2200109Ia 4500082002700000100006500027245003400092260002600126300001200152500000500164700000500169  a338.274091724bUn58.NF  aUnited Nations. Industrial Development Organisation, Vienna.  aNon-ferrous metals industryb  aNew YorkbUNIDOc1969  ax, 95p.  a  a