000			00269nam a2200097 4500
082			_a553GP _bOFF.I
100			_aOfficer, C.B.
245			_aIntroduction to the Theory of Sound Transmission _cOfficer, C.B.
260			_aNew York _c1958 _b McGraw-Hill Book Co.
942			_cBK
999			_c334376 _d334376