Hutchinson, J. (1975). The challenge of the third world. Cambridge University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHutchinson, Joseph. The Challenge of the Third World. Cambridge University Press, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHutchinson, Joseph. The Challenge of the Third World. Cambridge University Press, 1975.
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