000 00243nam a2200109Ia 4500
082 _a541.24 SON
100 _aSONI, P.L.
245 _aATOMIC STRUCTURE AND THE PERIODIC LAW
260 _aNEW DELHI
_bSCS
_c1975
300 _a254
942 _2ddc
_cB
999 _c43141
_d43141