Charles A. Beard. (1962). The American spirit: A study of the idea of civilization in the United States. New York: Collier books.
シカゴスタイル引用形Charles A. Beard. The American Spirit: A Study of the Idea of Civilization in the United States. New York: Collier books, 1962.
MLA引用形式Charles A. Beard. The American Spirit: A Study of the Idea of Civilization in the United States. New York: Collier books, 1962.
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