000 00309nam a2200133Ia 4500
008 210901s1969 xx 000 0 eng d
082 _a535 EFR
100 _aEfron, Alexander
245 0 _aLight
260 _aMumbai
_bVakils, Feffer and Simons
_c1969
300 _a127
650 _aPhysics
942 _2ddc
_cBK
999 _c9041
_d9041