000 00171 a2200073 4500
020 _a978-1-4308-0077-4
100 _aTeunissen, G
_9171662
245 _aElectrical Trade Theory N1
999 _c729156
_d729155
942 _w2694
_xGrace Mofokeng
_y2694
_zGrace Mofokeng