Elgerd, O. I. (1983). Electric energy systems theory (2nd.). Tata McGraw-Hill.
Chicago Edition CitationElgerd, Olle I. Electric Energy Systems Theory. 2nd. New Delhi: TMH: Tata McGraw-Hill, 1983.
Cita MLAElgerd, Olle I. Electric Energy Systems Theory. 2nd. Tata McGraw-Hill, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.