APA citiranje

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

Trích dẫn kiểu Chicago

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

MLA citiranje

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

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