Montgomery, D. H. (1920). The beginner's American history (New ed.). Ginn and Co..
Lua i Stíl Chicago (17ú heag.)Montgomery, D. H. The Beginner's American History. New ed. Boston : New York [etc.]: Ginn and Co., 1920.
Lua MLA (8ú heag.)Montgomery, D. H. The Beginner's American History. New ed. Ginn and Co., 1920.
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