Cita APA (7th ed.)
Ray, S. (2007). Electrical power systems concepts, theory and practice. PHI.
Cita Chicago (17th ed.)
Ray, Subir. Electrical Power Systems Concepts, Theory and Practice. New Delhi: PHI, 2007.
Cita MLA (9th ed.)
Ray, Subir. Electrical Power Systems Concepts, Theory and Practice. PHI, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.