00344nam a2200109Ia 450000500170000000800410001705000160005810000220007424500820009626000330017865000230021120251229171930.0251229s9999    xx            000 0 und d  aTA 157 .U54  aUnger, Stephen H. 0aControlling technologyb ethics and the responsible engineercStephen H Unger  aNew Yorkb CBS Collegec1982  aEngineering Ethics