MLA
Brown, S. B. Seated Picture of Alexander W. Wayman Wearing a Suit and Vest. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 63. https://digital.library.emory.edu/purl/8128931zh7-cor.
APA, 6th edition
Brown, S. B. Seated picture of Alexander W. Wayman wearing a suit and vest (Box 63) [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/8128931zh7-cor.
Chicago
Brown, S. B. “Seated Picture of Alexander W. Wayman Wearing a Suit and Vest.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 63. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/8128931zh7-cor.