MLA
Children Playing on a Rocking Horse. 1953. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 5. https://digital.library.emory.edu/purl/532d7wm3fm-cor.
APA, 6th edition
Children playing on a rocking horse (Box 5). (1953). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/532d7wm3fm-cor.
Chicago
“Children Playing on a Rocking Horse.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, 1953. Box 5. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/532d7wm3fm-cor.