MLA
Harriet Beecher Stowe, Mandarin, Fla. 1907. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 75. https://digital.library.emory.edu/purl/13331zcrmx-cor.
APA, 6th edition
Harriet Beecher Stowe, Mandarin, Fla. (Box 75). (1907). [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/13331zcrmx-cor.
Chicago
“Harriet Beecher Stowe, Mandarin, Fla.” Postcards. Robert Langmuir African American Photograph Collection, 1907. Box 75. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/13331zcrmx-cor.