The Economist. (2006). The economist pocket world in figures 2007 (2007 edition.). The Economist in association with Profile Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThe Economist. The Economist Pocket World in Figures 2007. 2007 edition. London: The Economist in association with Profile Books, 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्रThe Economist. The Economist Pocket World in Figures 2007. 2007 edition. The Economist in association with Profile Books, 2006.
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