000 00325nam a2200133Ia 4500
008 211209s2009 xx 000 0 und d
020 _a97888120328464
041 _aeng
082 _a004.6 GUP
100 _aGUPTA, PRAKASH C
245 _aDATA COMMUNICATIONS AND COMPUTER NETWORKS
260 _bPHI
_c2009
300 _a800
999 _c103409
_d103409