The Economist. (2003). The economist pocket world in figures 2004 (2004 edition.). The Economist Newspaper Ltd..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThe Economist. The Economist Pocket World in Figures 2004. 2004 edition. London: The Economist Newspaper Ltd., 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रThe Economist. The Economist Pocket World in Figures 2004. 2004 edition. The Economist Newspaper Ltd., 2003.
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