Clemens, M. C. (1841). Sub-Series 27: Clemens, Mary Cornelia, 1841-1845. Saint Louis University Libraries Digitization Center.
Chicago-viite (17. p.)Clemens, Mary Cornelia. Sub-Series 27: Clemens, Mary Cornelia, 1841-1845. Saint Louis University Libraries Digitization Center, 1841.
MLA-viite (8. p.)Clemens, Mary Cornelia. Sub-Series 27: Clemens, Mary Cornelia, 1841-1845. Saint Louis University Libraries Digitization Center, 1841.
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