Cita APA (7th ed.)
Ray, S. (2007). Electrical Power Systems. Prentic-Hall.
Cita Chicago (17th ed.)
Ray, Subir. Electrical Power Systems. New Delhi: Prentic-Hall, 2007.
Cita MLA (9th ed.)
Ray, Subir. Electrical Power Systems. Prentic-Hall, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.