MLA
Photography., Alan D. Hewitt. Ringling Bros. Circus Clown Visiting a Girl in the Children's Hospital of Philadelphia. 1968. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 5. https://digital.library.emory.edu/purl/354xgxd2b4-cor.
APA, 6th edition
Photography., A. D. H. (1968). Ringling Bros. Circus clown visiting a girl in the Children's Hospital of Philadelphia (Box 5) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/354xgxd2b4-cor.
Chicago
Photography., Alan D. Hewitt. “Ringling Bros. Circus Clown Visiting a Girl in the Children's Hospital of Philadelphia.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, 1968. Box 5. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/354xgxd2b4-cor.