00343nam a2200133Ia 4500008004100000100005300041245004400094250001200138260001500150300000800165650001200173942000700185999001700192190216s9999||||xx |||||||||||||| ||und||  aGovindarajan. Sr. Murugaiyan. T And Jayaraman. T 0aSound An Introduction Text Book For Bsc  a7th Ed.  bNullc1977  a245  aPhysics  cBK  c32840d32840