00481nam a2200181 a 450000500170000000800410001702000150005804100080007308200080008110000200008924500430010925000160015226400480016830000330021650000190024965000170026870000140028520260717091541.0260717s1995    ii            000 0 eng d  a070698868X  aeng04a5341 aSubramanyam, N.12aA textbook of sound /cSubramanyam, N.  a2nd Rev ed. 1aNew Delhi :bVikas Publishing House,c1995.  axiii, 285 p. : ill. ; 21 cm.  aIncludes index 4aSound-waves.1 aLal, Brij