000 00260nam a22001097a 4500
008 250107b |||||||| |||| 00| 0 eng d
100 _aC L Arora
245 _aWaves Vibrations & Sound
260 _aNew Delhi
_bS Chand
_c1984
300 _a170
942 _2ddc
_cBK
999 _c21063
_d21063