00478nam a2200145 a 450000500170000000800410001704100080005810000170006624500790008326400290016230000110019194200070020299900170020995201060022620260717091750.0260717s1999    ii            000 0 eng d  aeng1 aArora, C. L.10aS. Chand's simplified course in waves vibrations and sound /cArora, C. L. 1bS. Chand company,c1999.  a255 p.  cBK  c39787d39787  001040708DCaBKBCLbBKBCLd2001-03-31g92.00l0p41990r2026-07-17 09:17:50v92.00w2026-07-17yBK