MLA
Three Boys with a Dog on a Leash. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 2. https://digital.library.emory.edu/purl/1741rn8pqs-cor.
APA, 6th edition
Three boys with a dog on a leash (Box 2). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/1741rn8pqs-cor.
Chicago
“Three Boys with a Dog on a Leash.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 2. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/1741rn8pqs-cor.