000 00307nam a2200133Ia 4500
008 210901s1968 xx 000 0 eng d
082 _a534 EFR
100 _aEfron, Alexander
245 0 _aSound
260 _aDelhi
_bValils, Feffer and Simons
_c1968
300 _a72
650 _aPhysics
942 _2ddc
_cBK
999 _c9042
_d9042