000 00290nam a2200109Ia 4500
008 191031s9999 xx 000 0 und d
100 _aHarcottle
245 0 _aPrinciples of telecom cations engineering vol.1
260 _b"International book centre, CBE"
365 _b16.54
942 _cBK
999 _c193862
_d193862