MLA
Dickerson, Florence A. Business Card, Florence A. Dickerson. 1848. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 1, Folder 6. https://digital.library.emory.edu/purl/9182jm65f8-cor.
APA, 6th edition
Dickerson, F. A. (1848). Business card, Florence A. Dickerson (Box 1, Folder 6) [Business cards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/9182jm65f8-cor.
Chicago
Dickerson, Florence A. “Business Card, Florence A. Dickerson.” Business cards. William H. Scott Family Papers, 1848-1982, 1848. Box 1, Folder 6. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/9182jm65f8-cor.