MLA
Harper, and Co. Standing Portrait of Mattio Jarmine with Bowler Hat on Stand. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 17. https://digital.library.emory.edu/purl/392g79cnxj-cor.
APA, 6th edition
H., & C. Standing portrait of Mattio Jarmine with bowler hat on stand (Box 17) [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/392g79cnxj-cor.
Chicago
Harper, and Co. “Standing Portrait of Mattio Jarmine with Bowler Hat on Stand.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 17. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/392g79cnxj-cor.