MLA
Small Children Singing While Sitting on a Piano Bench. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 5. https://digital.library.emory.edu/purl/518rbnzsf4-cor.
APA, 6th edition
Small children singing while sitting on a piano bench (Box 5). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/518rbnzsf4-cor.
Chicago
“Small Children Singing While Sitting on a Piano Bench.” 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/518rbnzsf4-cor.