MLA
A Group of Men Standing in Front of a Brick Building, the Front Row Holding Rifles. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 32. https://digital.library.emory.edu/purl/774qjq2c1t-cor.
APA, 6th edition
A group of men standing in front of a brick building, the front row holding rifles (Box 32). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/774qjq2c1t-cor.
Chicago
“A Group of Men Standing in Front of a Brick Building, the Front Row Holding Rifles.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 32. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/774qjq2c1t-cor.