MLA
One Soldier Far Away Pointing While Three Others Aim Guns. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 19. https://digital.library.emory.edu/purl/0752fqz69x-cor.
APA, 6th edition
One soldier far away pointing while three others aim guns (Box 19). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0752fqz69x-cor.
Chicago
“One Soldier Far Away Pointing While Three Others Aim Guns.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 19. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0752fqz69x-cor.