MLA
Russell, Cora H. Business Card, Cora H. Russell. 1848. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 1, Folder 6. https://digital.library.emory.edu/purl/00000001g2-cor.
APA, 6th edition
Russell, C. H. (1848). Business card, Cora H. Russell (Box 1, Folder 6) [Business cards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/00000001g2-cor.
Chicago
Russell, Cora H. “Business Card, Cora H. Russell.” 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/00000001g2-cor.