00343nam a2200133Ia 4500008004100000041001200041082002100053100002600074245003200100250001300132260003200145300001200177650002000189231217s9999    xx            000 0 und d  aEnglish  a621.3811  NAG;20  aNagrath, I J Gopal, M 0aControl systems engineering  a2nd ed.   c1982bNew Delhi : New Age,   axii+725  aControl systems