00301nam a2200109Ia 4500008004100000100001800041245002500059260001100084942000700095952007400102999001500176240817s9999    xx            000 0 und d  aHoughton P.S. 0aEngineering Drafting  c, 1950  cBK  00104070aTCLbTCLd2024-08-21l0p5454r2024-08-21w2024-08-21yBK  c5027d5027