000 00313pam a2200133a 44500
082 _a621.381
_bR24p
100 _aRettinger, Michael
245 1 _aPRACTICAL ELECTROACOUSTICS
260 _aLondon
_bThames & Hudson
_c1955
300 _a271
650 _aElectro-Acoustics
964 _gCIRC
997 _a3605 s C
999 _c436067
_d436067