000 00334nam a2200133Ia 4500
008 220201s1978 xx 000 0 eng d
041 _aENG
100 _aROYAL, SIGNALS
245 0 _aHAND-BOOK OF LINE COMMUNICATION
250 _a4TH
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1978
300 _a905
942 _2ddc
999 _c50275
_d50275