MLA
Peace Photo (Philadelphia, Pa.). African American boxer putting on his gloves, while a man plays a violin in the boxing ring. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/651vdnck08-cor.
APA, 6th edition
Peace Photo (Philadelphia, Pa.). (unknown)[African American boxer putting on his gloves, while a man plays a violin in the boxing ring]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/651vdnck08-cor.
Chicago
Peace Photo (Philadelphia, Pa.), African American boxer putting on his gloves, while a man plays a violin in the boxing ring, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/651vdnck08-cor.