MLA
George Walker in a Tuxedo Holding a Hat. 1907. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 39. https://digital.library.emory.edu/purl/105s7h44nv-cor.
APA, 6th edition
George Walker in a tuxedo holding a hat (Box 39). (1907). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/105s7h44nv-cor.
Chicago
“George Walker in a Tuxedo Holding a Hat.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, 1907. Box 39. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/105s7h44nv-cor.