000 00198 a2200085 4500
020 _a0744515130
082 _bEKF RAD
100 _aRadeford Derek
_9174807
245 _aBuilding Machines and what they do
999 _c741969
_d741968
942 _w395
_xKholofelo Moabelo
_y395
_zKholofelo Moabelo