Dixson, R. J. (1960). The U.S.A. Men and History: Vocabulary Range-1600 Word. Regents Publishing Company.
Lua i Stíl Chicago (17ú heag.)Dixson, Robert J. The U.S.A. Men and History: Vocabulary Range-1600 Word. New York: Regents Publishing Company, 1960.
Lua MLA (9ú heag.)Dixson, Robert J. The U.S.A. Men and History: Vocabulary Range-1600 Word. Regents Publishing Company, 1960.
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