000 00319nam a22001457a 4500
020 _a0750652985
082 _a621.39
_bWIN
100 _aWinder Steve
245 _aTelecommunications pocket book
250 _aed.3
260 _aOxford
_bNewnes
_c2001
300 _a401p.
650 _aTelecommunications
942 _cREF
999 _c246720
_d246720