Ray, G. F. (1975). Western Europe and the energy crisi. London: Trade Policy Research Centre.
Chicago Style CitationRay, George F. Western Europe and the Energy Crisi. London: Trade Policy Research Centre, 1975.
Cita MLARay, George F. Western Europe and the Energy Crisi. London: Trade Policy Research Centre, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.