MLA
Chester Slider : an African American Boxer Holding a Trophy. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 74. https://digital.library.emory.edu/purl/986b2rbp2m-cor.
APA, 6th edition
Chester Slider : an African American boxer holding a trophy (Box 74). [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/986b2rbp2m-cor.
Chicago
“Chester Slider : an African American Boxer Holding a Trophy.” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 74. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/986b2rbp2m-cor.