00265nam a2200097Ia 4500008004100000041000800041082002500049100001700074245003300091260004300124211209s1999    xx            000 0 und d  aeng  a629.8312 N99 NAG/GOP  aNAGRATH, I J  aCONTROL SYSTEMS ENGINEERING   aNEW DELHIbNEW AGE INTERNATIONALc1999