00337nam a2200157Ia 4500008004100000020000900041035001000050082001500060100001800075245003100093250000600124260002700130300000800157500000800165650000600173210723s9999||||xx |||||||||||||| ||und||  aNULL  a25130  a546.4BMAT  aMathur, D. S. 0aChemistry Of Rare Elements  a-  aMeerutbGoel Prakashan  a208  a438  a-