MLA
Business Card, Bureau of Refugees and Freedmen. 1848. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 1, Folder 6. https://digital.library.emory.edu/purl/8708w9gkg4-cor.
APA, 6th edition
Business card, Bureau of Refugees and Freedmen (Box 1, Folder 6). (1848). [Business cards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/8708w9gkg4-cor.
Chicago
“Business Card, Bureau of Refugees and Freedmen.” 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/8708w9gkg4-cor.