000 00271nam a2200109Ia 4500
008 220601s2010 xx 000 0 eng d
100 _aKATRE,J.S.
245 0 _aDATA COMMUNICATION
250 _a1st Ed.
260 _c2010
_aNew Delhi
_bS.K.KATARIA & SONS
942 _2ddc
_cBTECH
999 _c3055
_d3055