000 00366pam a2200157a 44500
008 230405s2002 xxu||||| |||| 00| 0 eng d
041 _aENG
100 _aGUPTA P.C
245 _aDATA COMMUNICATION
_b12/06/2003
250 _a2002
260 _aNEW DELHI
_bPHI LEARNING PUB
_c2002
300 _aP.B,XIII,475
650 _aE&TC
690 _aE&TC
906 _a4016
999 _c818211
_d818211