000 002570000a22001210004500
080 _a534
_bM6
100 _aMorse, Philip M.
245 _aVibration and sound
250 _a2nd ed.
260 _aNew York
_bMcGraw Hill
_c1948
300 _a468p.
942 _cBK
999 _c51880
_d51880