00389nam a22000977a 4500082001300000100003100013245002400044260005400068300002900122650014000151  a534bSUB  aSubrahmanyam, N.aBrij Lal  aA textbook of sound  aNew DelhibVikas Publishing House  pvt  Ltdc1974  a285 p.b: ill.c; 23 cm.  aSoundvHarmonic motionvEnergy of vibrationvHarmonic oscillationvL C circuitvHarmonic vibrationvForced vibrationvVelocity of sound