00306nam a2200121Ia 45000030006000000080041000060400015000471000015000622450056000772600022001335460012001550050017001670STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSetp, W.W.  aSchaums outline of thoery and problems of acoustics  bMcgraw hillc1971  aEnglish20220125170114.0