MLA
Zoo., Gatorland. An African American Man with a Few Swans and Ducklings at Gatorland Zoo. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 69. https://digital.library.emory.edu/purl/1848pk0p5h-cor.
APA, 6th edition
Zoo., G. An African American man with a few swans and ducklings at Gatorland Zoo (Box 69) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/1848pk0p5h-cor.
Chicago
Zoo., Gatorland. “An African American Man with a Few Swans and Ducklings at Gatorland Zoo.” Photographic 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/1848pk0p5h-cor.