000 00262nam a2200097Ia 4500
008 230401s9999 xx 000 0 eng d
100 _aSHARMA(SANJAY)
245 0 _aDATA COMMUNICATION AND COMPUTER NETWORKS
260 _bKATARIA & SONS ( DELHI )
942 _2ddc
_cBTECH
999 _c7114
_d7114