Besley Timothy. (2011). Pillars of Prosperity. Princeton University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBesley Timothy. Pillars of Prosperity. New Jersey: Princeton University Press, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBesley Timothy. Pillars of Prosperity. Princeton University Press, 2011.
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