Ray, G. F. (1975). Western Europe and the energy crisi. London: Trade Policy Research Centre.
Chicago Style citaatRay, George F. Western Europe and the Energy Crisi. London: Trade Policy Research Centre, 1975.
MLA citatieRay, George F. Western Europe and the Energy Crisi. London: Trade Policy Research Centre, 1975.
Let op: Deze citaties zijn niet altijd 100% accuraat.