00460nam a2200181 a 4500 20260717092636.0 260717s2007 ii 000 0 eng d 9780070647664 eng 621.382 Bates, Regis J. Voice & Data Communications Handbook / Bates, Regis J. 5th ed. New Delhi : Tata McGraw-Hill, c2007. 644 p. Physics BK 49469 49469 0 0 0 0 DC BKBCL BKBCL 2010-01-05 625.00 0 621.382 BAT 64359 2026-07-17 09:26:36 625.00 2026-07-17 BK 0 0 0 0 DC BKBCL BKBCL 2010-01-05 625.00 0 621.382 BAT 64360 2026-07-17 09:26:36 625.00 2026-07-17 BK