MLA
Five African American Military Officers Standing on a Lawn Holding Sabers, with a Large Crowd Watching from Behind. 1938. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 70. https://digital.library.emory.edu/purl/153jwstqnw-cor.
APA, 6th edition
Five African American military officers standing on a lawn holding sabers, with a large crowd watching from behind (Box 70). (1938). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/153jwstqnw-cor.
Chicago
“Five African American Military Officers Standing on a Lawn Holding Sabers, with a Large Crowd Watching from Behind.” Photographic postcards. Robert Langmuir African American Photograph Collection, 1938. Box 70. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/153jwstqnw-cor.