000 00456 a2200169 4500
999 _c41465
_d41465
003 WUSLLib
008 200930b ||||| |||| 00| 0 eng d
082 _a621.382
_bLAN
100 _aLangley, Graham
_918956
245 _aTelecommunications primer
250 _a4th ed.
260 _aEngland:
_bPearson education,
_c1998
300 _av, 198p.;
_c24cm.
650 _aCOMMUNICATIONS ENGINEERING
_99732
700 _aRonayne, John
_918957
942 _cL
_2ddc