Carman, H. J. (1930). Social and economic history of the United States. Heath.
Lua i Stíl Chicago (17ú heag.)Carman, Harry J. Social and Economic History of the United States. Boston: Heath, 1930.
Lua MLA (8ú heag.)Carman, Harry J. Social and Economic History of the United States. Heath, 1930.
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