00521nam 2200157z- 450 996320181903316(CKB)3780000000105502(EXLCZ)99378000000010550220170130c1897uuuu -u- -engLessons in Elementary Practical Physics, Volume 3, part 1. Practical AcousticsLondonMacmillan and coBOOK996320181903316Lessons in Elementary Practical Physics, Volume 3, part 1. Practical Acoustics2245648UNISA