000 00251nam a2200109Ia 4500
082 _a541.24 SON
100 _aSONI, P.L.
245 _aATOMIC STRUCTURE AND PERIODIC CLASSIFICATIONS
260 _bS.CHAND & SONS
_c1977
300 _a256
942 _2ddc
_cB
999 _c39403
_d39403