000 00236nam a2200109Ia 4500
020 _a0852266057
082 _a629.8
100 _aNAGRATH, I.J
245 _aCONTROL SYSTEMS ENGINEERING
260 _aNEW DELHI
_b NEW AGE
_c1982
942 _cBK
999 _c5116
_d5116