00369    a2200145   4500003000500000005001700005040000900022082001100031100001800042245005000060250002200110260004300132300001400175538003400189Nust20170207153834.0  cNust  a621.38  aRoyal Signals  aHandbook of Line CommunicationcRoyal Signals  aW.O. code No 1698  aLondonbHer Majesty's Stationeryc1962  a703-773p.  aAlmirah No.132 and Shelf No.1