00401nam a2200133Ia 4500008004100000041000800041082001600049100006100065245004100126250000600167260005100173300001400224650002900238210716s1991    xx            000 0 und d  aeng  a004.21 WHIJ  aWhitten, Jeffrey L; Bentley, Lonnie D; Barlow, Victor M.  aSystems analysis and design methods.  a2  aNew DelhibGalgotia Publications Pvt Ltdc1991  axxxii,797  aSystem Analysis & Design