MLA
Eddy, E. C. Uncle Tom's Cabin. 1914. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 75. https://digital.library.emory.edu/purl/856n02v70j-cor.
APA, 6th edition
Eddy, E. C. (1914). Uncle Tom's cabin (Box 75) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/856n02v70j-cor.
Chicago
Eddy, E. C. “Uncle Tom's Cabin.” Postcards. Robert Langmuir African American Photograph Collection, 1914. Box 75. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/856n02v70j-cor.