APA ציטוט

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

Trích dẫn kiểu Chicago

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

ציטוט MLA

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