Cita APA (7th ed.)
Nagrath, I. J., & Gopal, M. (1975). Control systems engineering. Wiley, New Age International.
Cita Chicago (17th ed.)
Nagrath, I. J., i M. Gopal. Control Systems Engineering. New York : New Delhi: Wiley, New Age International, 1975.
Cita MLA (9th ed.)
Nagrath, I. J., i M. Gopal. Control Systems Engineering. Wiley, New Age International, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.