APA (7th ed.) Zitazioa
Nagrath, I. J., & Gopal, M. (2002). Control systems engineering (3rd ed.). New Age International.
Chicago Style (17th ed.) Zitazioa
Nagrath, I. J., eta M. Gopal. Control Systems Engineering. 3rd ed. Calcutta: New Age International, 2002.
MLA (9th ed.) Zitazioa
Nagrath, I. J., eta M. Gopal. Control Systems Engineering. 3rd ed. New Age International, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.