00421nam a2200145Ia 4500008004100000020000700041040003000048082002000078100002900098245006800127260003100195300001100226650001200237700002600249190302s9999||||xx |||||||||||||| ||und||  c35  aKharagpur College Library  a530.15bC349/WA  aPradip Kumar Chakraborty 2aA textbook on Waves and acousticsbIntroducting To Mathematical  bNew CantralaKolkatac1982  a322 p.  aPhysics  aSathabarata Chowdhary