000 00314nam a2200133Ia 4500
008 210901s1968 xx 000 0 eng d
082 _a530.124 CRA
100 _aCraeford, Frank.S,
245 0 _aWaves
260 _aDelhi
_bKhosla Publishing House
_c1968
300 _a600
650 _aPhysics
942 _2ddc
_cBK
999 _c23728
_d23728