MLA
Robinson, A. M. African American Girl Sitting on a Swing, with Two African American Boys Standing on Both Sides of Her. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 72. https://digital.library.emory.edu/purl/375dbrv173-cor.
APA, 6th edition
Robinson, A. M. African American girl sitting on a swing, with two African American boys standing on both sides of her (Box 72) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/375dbrv173-cor.
Chicago
Robinson, A. M. “African American Girl Sitting on a Swing, with Two African American Boys Standing on Both Sides of Her.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 72. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/375dbrv173-cor.