Παραπομπή APA

Nagrath, I. J., & Gopal, M. (1975). Control systems engineering. Wiley Eastern.

Παραπομπή Chicago Style

Nagrath, I J., και M. Gopal. Control Systems Engineering. New Delhi: Wiley Eastern, 1975.

Παραπομπή MLA

Nagrath, I J., και M. Gopal. Control Systems Engineering. Wiley Eastern, 1975.