MLA
Ex. Sup. Co. (Chicago, Ill.). Bruce Flowers, world's colored lightweight champion. 1928 approx.. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/53976hdrbh-cor.
APA, 6th edition
Ex. Sup. Co. (Chicago, Ill.). (1928 approx.)[Bruce Flowers, world's colored lightweight champion]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/53976hdrbh-cor.
Chicago
Ex. Sup. Co. (Chicago, Ill.), Bruce Flowers, world's colored lightweight champion, 1928 approx., Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/53976hdrbh-cor.