एपीए उद्धरण

Elgerd, O. I. (1971). Electric energy systems theory: :an introduction. Tata Mc Graw - Hill.

शिकागो स्टाइल उद्धरण

Elgerd, Olle I. Electric Energy Systems Theory: :an Introduction. New Delhi: Tata Mc Graw - Hill, 1971.

एमएलए उद्धरण

Elgerd, Olle I. Electric Energy Systems Theory: :an Introduction. Tata Mc Graw - Hill, 1971.