MLA
Young African American Boy in a Chair Wearing Sailor-like Clothes. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 72. https://digital.library.emory.edu/purl/5977sqv9vk-cor.
APA, 6th edition
Young African American boy in a chair wearing sailor-like clothes (Box 72). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/5977sqv9vk-cor.
Chicago
“Young African American Boy in a Chair Wearing Sailor-like Clothes.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 72. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/5977sqv9vk-cor.