00302nam a2200121Ia 4500008004100000100003500041245002700076260003300103300000800136650001200144942000700156999001700163190216s9999||||xx |||||||||||||| ||und||  aSubrahmanyanan. N  And Brijlal 0aWaves And Oscillations  bVikas Publishing Housec1974  a432  aPhysics  cBK  c34481d34481