000 00286nam a2200121Ia 4500
008 210219s9999||||xx |||||||||||||| ||und||
082 _a534
_bK145T
100 _aKhanna D R
245 2 _aA text book of sound
_cKhanna D R
260 _aDelhi
_bAtma Ram
_c1992
300 _a508
942 _cBK
999 _c2655
_d2655