Oliver, H. P. H. (1967). Petroleum. Published for the Nuffield Foundation by the Longmans/Penguin Books.
Citace podle Chicago (17th ed.)Oliver, H. P. H. Petroleum. London: Published for the Nuffield Foundation by the Longmans/Penguin Books, 1967.
Citace podle MLA (9th ed.)Oliver, H. P. H. Petroleum. Published for the Nuffield Foundation by the Longmans/Penguin Books, 1967.
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