APA-viite (7. p.)

Nagrath, I. J., & Gopal, M. (1981). Control systems engineering (2a. ed.). Wiley Eastern.

Chicago-viite (17. p.)

Nagrath, I. J., ja M. Gopal. Control Systems Engineering. 2a. ed. Nueva Delhi: Wiley Eastern, 1981.

MLA-viite (9. p.)

Nagrath, I. J., ja M. Gopal. Control Systems Engineering. 2a. ed. Wiley Eastern, 1981.