00305nam a2200109Ia 4500008004100000040002500041082001200066100002400078245005100102260003400153300000800187230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a650 E15  aElliott, Orville C. 0aSelf review in introduction to data processing  bRichard D. Irwin, Inc. c1970  a140