2003. Petroleum Economist Ltd. Deutsche Bank Relief shown by gradient tints. Depths shown by gradient tints.On upper left corner: Petroleum Economist Car... London : Petroleum Economist Ltd., 2003.
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2003. Petroleum Economist Cartographic (Firm). Relief shown by gradient tints. Depths shown by gradient tints. Includes tables showing gas reserves and production by country and by region for 20... London : Petroleum Economist Ltd., 2003.