00000nam a2200000 a 4500 20251203090449.0 539.6, D, WEH Wehr, M Russell Physics of the atom 4th ed Delhi Narosa 1986 xv,593p, 22cm Molecular physics Richards, James, A ENG 100 010 _ 14551 LIBSC C 8470 8470 0 0 0 0 PU PU 1998-04-08 0 539.6, D, WEH 14551 BK