Johnson, P. (1980). The modern times: The world from the twenties to the eighties. New York: Harper & Row Publisher.
Trích dẫn kiểu ChicagoJohnson, Paul. The Modern Times: The World From the Twenties to the Eighties. New York: Harper & Row Publisher, 1980.
Deismireacht MLAJohnson, Paul. The Modern Times: The World From the Twenties to the Eighties. New York: Harper & Row Publisher, 1980.
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