000 00234nam a22001097a 4500
082 _a539.7 GUP'A
100 _aGUPTA, A.D
_975188
245 _aTHE ATOM AND ITS ENERGY
260 _aLONDON
_bASIA
_c1959
300 _a140P
942 _cBK
999 _c580658
_d580658