000 00258nam a2200097Ia 4500
008 230508s2007 xx 000 0 und d
041 _aeng
100 _aGODBOLE ACHYUT.S.
245 _aDATA COMMUNICATIONS AND NETWORKS
260 _bTATA MCGRAW HILL
_c2007
_g2007
999 _c317989
_d317989