Dyfyniad APA

(1995). Encyclopedia of energy technology and the environment. New York: John Wiley and Sons.

Dyfyniad Arddull Chicago

Encyclopedia of Energy Technology and the Environment. New York: John Wiley and Sons, 1995.

Dyfyniad MLA

Encyclopedia of Energy Technology and the Environment. New York: John Wiley and Sons, 1995.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.