MLA
Man Pulling Cart on Flatcar That Says Circus. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 7. https://digital.library.emory.edu/purl/187pnvx0qw-cor.
APA, 6th edition
Man pulling cart on flatcar that says Circus (Box 7). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/187pnvx0qw-cor.
Chicago
“Man Pulling Cart on Flatcar That Says Circus.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 7. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/187pnvx0qw-cor.