000 00385nam a2200169Ia 4500
008 180424s9999 xx 000 0 und d
084 _a534 B3
100 _a"Beranek, Leol"
245 0 _aAcoustics
250 _a\\195400ENGGPCX
260 _aMcGraw Hill
260 _b1954
260 _cNew York
300 _ax+481 p
500 _aincludes index and biblioraphy
942 _cBK
999 _c12420
_d12420