00398    a2200157   4500020001500000082001600015100001800031245003600049250001200085260005400097300001900151650001500170650001200185650002400197650001900221  a0521498481  a531.32bMAI  aMain, Iain G.  aVibrations and waves in physics  a3rd ed.  aCambridgebCambridge University Pressc1978g1978  axi,359p.c22cm  aVibrations  aPhysics  aClassical mechanics  aSolid dynamics