000 00259nam a2200109Ia 4500
008 160710s1947 xx 000 0 und d
100 _aROYAL SIGNALS
245 _aHANDBOOK OF LINE COMMUNICATION
260 _bMCMXLVII
_c1947
300 _a905
942 _2ddc
_cB
999 _c24030
_d24030