000 00304nam a2200109Ia 45e0
008 181001s1959 xx 000 0 und d
100 _aCatton H.
245 0 _aElectrical Technology
260 _aLondon
_bPitman
_c1959
300 _a600
942 _2ddc
_cBK
999 _c854
_d854