MLA
African American Man in a Boxing Pose. 1921. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 37. https://digital.library.emory.edu/purl/822h70rz1r-cor.
APA, 6th edition
African American man in a boxing pose (Box 37). (1921). [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/822h70rz1r-cor.
Chicago
“African American Man in a Boxing Pose.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, 1921. Box 37. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/822h70rz1r-cor.