Toynbee, A. J. (1962). America and the world revolution. New York: Oxford University Press.
Trích dẫn kiểu ChicagoToynbee, Arnold J. America and the World Revolution. New York: Oxford University Press, 1962.
Deismireacht MLAToynbee, Arnold J. America and the World Revolution. New York: Oxford University Press, 1962.
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