000 00270nam a22001217a 4500
020 _a9789332586932
100 _aSTALLINGS WILLIAM
245 _aDATA AND COMPUTER COMMUNICATIONS
250 _a10TH
260 _aNOIDA
_bPEARSON
_c2018
300 _a911P
942 _cBK
999 _c9366
_d9366