00397nam a2200157Ia 4500008004100000020001500041041001200056082001600068100001900084245005400103250000800157260003400165300000800199650001600207700001600223221030s9999    xx            000 0 und d  a8181472063  aEnglish  a105.23bPet  aL. L. Peterson 0aComputer Networkscby L. L. Peterson, B. S. Davie  a3rd  bElsevier PubaNew Delhic2004  a813  aBE Computer  aB. S. Davie