McMaster, J. B. (1920). A school history of the United States (Rev. and enl.). American Book Co..
Lua i Stíl Chicago (17ú heag.)McMaster, John Bach. A School History of the United States. Rev. and enl. New York : Cincinnati [etc.]: American Book Co., 1920.
Lua MLA (8ú heag.)McMaster, John Bach. A School History of the United States. Rev. and enl. American Book Co., 1920.
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