Automatic control systems; :
Verma, S. N.
Automatic control systems; : a textbook for engineering students / S. N Verma. - [S.l.] : Khanna, 1999. - 559 p.
Automatic control systems; : a textbook for engineering students / S. N Verma. - [S.l.] : Khanna, 1999. - 559 p.