00373nam 2203991 45000010005000000030023000050050009000280080041000370820013000781000021000912600024001122500019001362450086001553991StarLibrary Marc Built20180713201711 ||||| |||||||||||amh  a621.3911 asarah hutchinson bmc graw hill c2000 aالطبعة 7 acomputers, communications information a users introduction, comprehensive version