एपीए उद्धरण

Elgerd, O. I. (1971). Electric energy systems theory: An introduction. New York: McGraw-Hill.

शिकागो स्टाइल उद्धरण

Elgerd, Olle I. Electric Energy Systems Theory: An Introduction. New York: McGraw-Hill, 1971.

एमएलए उद्धरण

Elgerd, Olle I. Electric Energy Systems Theory: An Introduction. New York: McGraw-Hill, 1971.