Dyfyniad APA

Ray, G. F. (1975). Western Europe and the energy crisi. London: Trade Policy Research Centre.

Dyfyniad Arddull Chicago

Ray, George F. Western Europe and the Energy Crisi. London: Trade Policy Research Centre, 1975.

Dyfyniad MLA

Ray, George F. Western Europe and the Energy Crisi. London: Trade Policy Research Centre, 1975.

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