000 00300nam a2200109Ia 45e0
008 181001s1964 xx 000 0 und d
100 _aHughes E.
245 0 _aElectrical technology
260 _aLondon
_bL.B.S
_c1964
300 _a731
942 _2ddc
_cBK
999 _c423
_d423