MLA
Photo., Parker's. Portrait of John to Ollie. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 19. https://digital.library.emory.edu/purl/320sqv9sjv-cor.
APA, 6th edition
Photo., P. Portrait of John to Ollie (Box 19) [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/320sqv9sjv-cor.
Chicago
Photo., Parker's. “Portrait of John to Ollie.” Card photographs (photographs). Langmuir Deposit - Sept 2020, n.d. Box 19. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/320sqv9sjv-cor.