00457nam a2200133   4500082001300000100002600013245012700039260003400166300001200200650002900212650002100241650003400262650002700296  a546.3JAV  aJavier-Son, Adelina,   aNew Analytical Techniques for Trace Constituents of Metallic and Metal-bearing Ores: A Symposium : 24 June 1980 in Chicago  aUSA:bAmerican societyc1981.  a135p. ;  aTrace elements--Analysis  aMetals--Analysis  aOres--Sampling and estimation  aMetallurgical analysis