000 00322nam a2200133Ia 4500
008 220204s9999 xx 000 0 und d
082 _a621.3
_bSHE
100 _aShepherd, J
245 0 _aHigher electrical engineering
250 _a2
260 _aLondon
_bPitman
_c1970
650 _aElectrical engineering
942 _cBK
999 _c27167
_d27167