Dyfyniad APA
Elgerd, O. I. (1982). Electric energy systems theory: An introduction (2nd ed.). McGraw-Hill.
Dyfyniad Arddull Chicago
Elgerd, Olle I. Electric Energy Systems Theory: An Introduction. 2nd ed. New York ; New Delhi: McGraw-Hill, 1982.
Dyfyniad MLA
Elgerd, Olle I. Electric Energy Systems Theory: An Introduction. 2nd ed. McGraw-Hill, 1982.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.