000 00359nam a2200157Ia 4500
008 180626s9999 xx 000 0 und d
082 _a620 H347w
100 _aHeald, Henry
245 0 _aworld of engineer
260 _aNew York
260 _bVoice of America Forum Lectures
260 _c1970
300 _a251
650 _aEngineering
942 _cBK
999 _c35323
_d35323