Youngson, A. (1972). Economic development in the long run. George Allen and Unwin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रYoungson, A.J. Economic Development in the Long Run. George Allen and Unwin, 1972.
एमएलए (9वां संस्करण) प्रशस्ति पत्रYoungson, A.J. Economic Development in the Long Run. George Allen and Unwin, 1972.
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