000 00240nam a2200097Ia 4500
008 150310s9999 xx 000 0 und d
100 _aNAGRATH I J & GOPAL M
245 _aCONTROL SYSTEMS ENGG.
250 _a2
260 _c1991
_bWILEY EASTERN
999 _c19549
_d19549