00267nam a2200109Ia 4500008004100000041000800041082002500049100001300074245005300087260000900140300000800149211209s1977    xx            000 0 und d  aeng  a620.0045 N77 AND/SAG  aANDREW P  aSYSTEM ENGINEERING METHODOLOGY AND APPLICATIONS   c1977  a401