00306    a2200121   4500020001500000082001700015100001700032245003900049250000900088260003600097300002000133650003100153  a0240514610  a621.382bLEW  aLewis, Geoff  aCommunications technology handbook  a02nd  aOxfordbFocal pressc1997g1997  aix, 467p.c25cm  aCOMMUNICATIONS ENGINEERING