Dyfyniad APA

World Energy Council Madrid, Spain. (1992). ُEnergy and the Economy: Energy costs, prices and competition.

Dyfyniad Arddull Chicago

World Energy Council Madrid, Spain. ُEnergy and the Economy: Energy Costs, Prices and Competition. Madrid, 1992.

Dyfyniad MLA

World Energy Council Madrid, Spain. ُEnergy and the Economy: Energy Costs, Prices and Competition. 1992.

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