000 00310nam a2200121Ia 4500
008 220201s1978 xx 000 0 eng d
082 _bSIG
100 _aRoyal Signals
245 0 _aHandbook of line comunication v.1
260 _aDelhi
_bStandard publishers distributers
_c1978
300 _a904
942 _2ddc
999 _c22704
_d22704