00395nam a2200157Ia 4500008004100000020001800041041000800059082001500067100001800082245004000100250001200140260002200152300002900174365001600203700001800219230718s9999    xx            000 0 und d  a9781259064753  aeng  a004.6bFOR  aForouzan B.A.  aData Communications And Networking   a5th ed.  c2019bMcGraw Hill  a1226dRef 1545 C (48723)  cRs.b599.00  aForouzan B.A.