MLA
Cheyne. Portrait of Young Man in Uniform. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 19. https://digital.library.emory.edu/purl/078gf1vhwf-cor.
APA, 6th edition
C. Portrait of young man in uniform (Box 19) [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/078gf1vhwf-cor.
Chicago
Cheyne. “Portrait of Young Man in Uniform.” 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/078gf1vhwf-cor.