Oxenfeldt, A. R. (1953). Economic systems in action: The United States, the Soviet Union, and the United Kingdom. Rinehart.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOxenfeldt, Alfred Richard. Economic Systems in Action: The United States, the Soviet Union, and the United Kingdom. New York: Rinehart, 1953.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOxenfeldt, Alfred Richard. Economic Systems in Action: The United States, the Soviet Union, and the United Kingdom. Rinehart, 1953.
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