MLA
An African American Man Feeding a Duck. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 69. https://digital.library.emory.edu/purl/344pk0p2rf-cor.
APA, 6th edition
An African American man feeding a duck (Box 69). [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/344pk0p2rf-cor.
Chicago
“An African American Man Feeding a Duck.” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 69. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/344pk0p2rf-cor.