Shafer, R. J. (1958). The economic societies in the Spanish world, 1763-1821. Syracuse University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रShafer, Robert Jones. The Economic Societies in the Spanish World, 1763-1821. [Syracuse, N.Y.]: Syracuse University Press, 1958.
एमएलए (9वां संस्करण) प्रशस्ति पत्रShafer, Robert Jones. The Economic Societies in the Spanish World, 1763-1821. Syracuse University Press, 1958.
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