The Economist. (2003). The economist pocket world in figures 2004 (2004 edition.). The Economist Newspaper Ltd..
Lua i Stíl Chicago (17ú heag.)The Economist. The Economist Pocket World in Figures 2004. 2004 edition. London: The Economist Newspaper Ltd., 2003.
Lua MLA (9ú heag.)The Economist. The Economist Pocket World in Figures 2004. 2004 edition. The Economist Newspaper Ltd., 2003.
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