Clemens, J. W. (1838). Sub-Series 27: Clemens, James W., 1838. Saint Louis University Libraries Digitization Center.
Lua i Stíl Chicago (17ú heag.)Clemens, James W. Sub-Series 27: Clemens, James W., 1838. Saint Louis University Libraries Digitization Center, 1838.
Lua MLA (8ú heag.)Clemens, James W. Sub-Series 27: Clemens, James W., 1838. Saint Louis University Libraries Digitization Center, 1838.
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