00273nam a2200109Ia 4500008004100000041000800041082001400049100001800063245003700081250000600118260003900124221102s9999    xx            000 0 und d  aeng  a4.21bAwa  aAwad  Elis  M  aSystems  Analysis   and   Design  a2  bGalgotia   Publicationc1905-06-30