000 00308nam a2200133Ia 4500
008 160122s9999 xx 000 0 und d
041 _aEnglish
100 _aWilliam Stallings
245 _aData and Computer Communication
250 _a1st
260 _bDelhi:PHI
_c1999
300 _a798p.
650 _aComputer
999 _c50
_d50