000 00404nam a2200181Ia 4500
008 210723s9999||||xx |||||||||||||| ||und||
020 _aNULL
035 _a25356
082 _a539.7
_BSON
100 _aSoni, P. L
245 0 _aAtomic Structure And Periodic Classification
250 _a-
260 _aDelhi
_bSultan Chand & Sons
300 _a254
500 _a751
650 _a-
942 _cBK
999 _c25356
_d25356