000 00321nam a2200133Ia 4500
008 190601s9999 xx 000 0 und d
020 _a_
082 _a537
_bPRI
245 0 _aPRINCIPLES of electricity ECF 2301
260 _aNugegoda
_bOpen University
_c1990
300 _a118 p.
650 _aElectricity
942 _cS
999 _c120520
_d120519