000 00337nam a2200157Ia 4500
001 3164
008 141107s9999 xx 000 0 und d
020 _a0 273 40063 0
100 _aShepherd J
245 _aHigher Electrical Engineering
250 _a2
260 _aLondon
260 _bPitman
260 _c1977
300 _a,;ill.
999 _c31020
_d31020