Commager, H. S. N. (1939). The heritage of America. Little, Brown and Company.
Lua i Stíl Chicago (17ú heag.)Commager, Henry Steele; Nevins. The Heritage of America. Boston: Little, Brown and Company, 1939.
Lua MLA (9ú heag.)Commager, Henry Steele; Nevins. The Heritage of America. Little, Brown and Company, 1939.
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