00585nam a22002057a 4500 20260729080450.0 0201565064 Tsh 60,000/= Tegeta DCC-Library eng AACR2 004.6 HAL HALSALL,Fred Data Communications, Computer Networks and Open Systems Fred Halsall 3rd ed England Addison- Wesley Publishing Company c1992 xi,772p. ill.; 23cm. Includes Index Data Communication Computer Network Wde Area BK 13173 13173 0 0 0 0 MU004 MU004 2012-10-31 SOB 0 004.6 HAL T0000039 2026-07-29 08:06:48 1 2026-07-29 BK