Cita APA (7th ed.)
Gopal, M. (2002). Control systems: Principles and design (2nd ed.). Tata McGraw-Hill.
Cita Chicago (17th ed.)
Gopal, M. Control Systems: Principles and Design. 2nd ed. New Delhi: Tata McGraw-Hill, 2002.
Cita MLA (9th ed.)
Gopal, M. Control Systems: Principles and Design. 2nd ed. Tata McGraw-Hill, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.