00295nam a22001217a 4500020001800000040000900018082001500027100002100042245002600063250001900089260003900108650002600147  a9788177588743  cNUST  a620.3bRAO  aSingiresu S. Rao  aMechanical Vibrations  aFourth Edition  aIndia:bDorling Kindersley,c2013.  2Mechanical Vibrations