MLA
Portrait of a Small Boy. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 5. https://digital.library.emory.edu/purl/24947d7wrn-cor.
APA, 6th edition
Portrait of a small boy (Box 5). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/24947d7wrn-cor.
Chicago
“Portrait of a Small Boy.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 5. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/24947d7wrn-cor.