000 00332nam a2200133Ia 4500
999 _c18911
_d18911
008 190711s9999 xx 000 0 und d
020 _a0894330985
082 _a621.384 H842
100 _aHouse, William, C.
245 0 _aElectronic Communications System
260 _aNew York
_bPetrocelli
_c1980
300 _a23X15
942 _cBK