000 00193 a2200085 4500
020 _a978582444497
082 _aST 621.3 HUGH
100 _aEdward Hughes
_9176892
245 _aElectrical technology
999 _c746325
_d746324
942 _w395
_xKholofelo Moabelo
_y395
_zKholofelo Moabelo