Hill, P., & Vielvoye, R. (1974). Energy in Crisis ; a Guide to World Oil Supply and Demand and Alternative Resources. Yeatman.
Citace podle Chicago (17th ed.)Hill, Peter, a Roger Vielvoye. Energy in Crisis ; a Guide to World Oil Supply and Demand and Alternative Resources. London: Yeatman, 1974.
Citace podle MLA (8th ed.)Hill, Peter, a Roger Vielvoye. Energy in Crisis ; a Guide to World Oil Supply and Demand and Alternative Resources. Yeatman, 1974.
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