000 00299nam a2200121Ia 4500
008 221117b |||||||| |||| 00| 0 eng d
040 _aBGL
_cBGL
082 _a891.424GUP;C
100 _aSastry, B S D
245 0 _aComparitive Study Of Speaker
260 _aNew Delhi
_bSterling
_c1983
942 _cREF
999 _c32506
_d32506