00346nam a2200133Ia 4500008004100000020000700041040003000048082001300078100002900091245003800120260003100158300001100189650001200200190302s9999||||xx |||||||||||||| ||und||  c60  aKharagpur College Library  a534bCHA  aPradip Kumar Chakraborty 2aA textbook on Waves and acoustics  bNew CantralaKolkatac1993  a325 p.  aPhysics