000 00445nam a22001577a 4500
005 20220518143128.0
008 100622t xxu||||| |||| 00| 0 eng d
020 _a0131973851
082 _a621.398
_bMCG
100 _aMcGovern,Tom
245 _aDatacommunications
_bconcepts and applications
260 _aScarborough
_bPrentice Hall Canada.Inc.
_c1988
300 _axxiii,359p.
653 _adata communications
_acomputer networks
942 _cBK
999 _c223111
_d223111