Dyfyniad APA

(1976). Energy policies of the world: Canada, China, Arab States of the Persian Gulf, Venezuela, Iran. American Elsevier Publishing Company, Inc.

Dyfyniad Arddull Chicago

Energy Policies of the World: Canada, China, Arab States of the Persian Gulf, Venezuela, Iran. New York: American Elsevier Publishing Company, Inc, 1976.

Dyfyniad MLA

Energy Policies of the World: Canada, China, Arab States of the Persian Gulf, Venezuela, Iran. American Elsevier Publishing Company, Inc, 1976.

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