Gunther, J. (1950). Roosevelt in retrospect: A profile in history / John Gunther. Harper.
Chicagoスタイル(17版)引用形式Gunther, John. Roosevelt in Retrospect: A Profile in History / John Gunther. New York: Harper, 1950.
MLA(8版)引用形式Gunther, John. Roosevelt in Retrospect: A Profile in History / John Gunther. Harper, 1950.
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