000 00325nam a2200133Ia 4500
008 211209s1996 xx 000 0 und d
041 _aeng
082 _a004.6 N96 FRI/FIK
100 _aFRIEND, GEORGE E
245 _aUNDERSTANDING DATA COMMUNICATIONS
250 _a4 ed.
260 _aNEW DELHI
_bPHI
_c1996
300 _a435
999 _c36759
_d36759