000 00297nam a2200121Ia 4500
008 250224s9999 xx 000 0 und d
020 _a816020299
082 _aREF384.03GRA
100 _aGraham John
245 0 _aDictionary of Telecommunication
260 _bFactson files
_c1983
942 _cRBK
999 _c443192
_d443192