Reich, R. B. (1992). The work of nations: Preparing ourselves for 21st century capitalism (First Vintage Books edition.). Vintage Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रReich, Robert B. The Work of Nations: Preparing Ourselves for 21st Century Capitalism. First Vintage Books edition. New York: Vintage Books, 1992.
एमएलए (8वां संस्करण) प्रशस्ति पत्रReich, Robert B. The Work of Nations: Preparing Ourselves for 21st Century Capitalism. First Vintage Books edition. Vintage Books, 1992.
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