MLA
African Americans Posing around a Door. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 12. https://digital.library.emory.edu/purl/535t76hdz1-cor.
APA, 6th edition
African Americans posing around a door (Box 12). [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/535t76hdz1-cor.
Chicago
“African Americans Posing around a Door.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 12. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/535t76hdz1-cor.