00348nam a2200121 a 450000500170000008200130001710000060003011000300003624500670006626000460013330000230017963000240020220251203091155.0  a500bPRO  d_  aIndia: Acoustical society  aProceedings of the National symposium on acoustics 1986 Bombay  aBombaybAcoustical society of Indiac1986  a278 p.b22 cm.cPB  aAcoustics symposium