MLA
Boy Scouts Saluting on a Sidewalk in Front of a Building. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 5. https://digital.library.emory.edu/purl/863fxpnw3q-cor.
APA, 6th edition
Boy Scouts saluting on a sidewalk in front of a building (Box 5). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/863fxpnw3q-cor.
Chicago
“Boy Scouts Saluting on a Sidewalk in Front of a Building.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 5. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/863fxpnw3q-cor.