00317nam a2200121Ia 4500008004100000020001800041082001500059100001300074245005100087250000800138260003900146300001000185190710s9999    xx            000 0 und d  a81-219-2780-3  a531.32 G34  aGhosh, M 0aText book of oscillations, waves and acoustics  a4th  aNew DelhibS. Chand & Co Ltdc2012  ax,252