APA-referens (7:e uppl.)
Gopal, M. (2003). Digital control and state variable methods: Conventional and neural-fuzzy control systems (2nd ed.). Tata McGraw-hill.
Chicago-referens (17:e uppl.)
Gopal, M. Digital Control and State Variable Methods: Conventional and Neural-fuzzy Control Systems. 2nd ed. New Delhi: Tata McGraw-hill, 2003.
MLA-referens (9:e uppl.)
Gopal, M. Digital Control and State Variable Methods: Conventional and Neural-fuzzy Control Systems. 2nd ed. Tata McGraw-hill, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.