MLA
Studio., Falk's Diamond. Portrait of Man in Sailor Uniform with Arms Crossed. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 19. https://digital.library.emory.edu/purl/102c866tdq-cor.
APA, 6th edition
Studio., F. D. Portrait of man in sailor uniform with arms crossed (Box 19) [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/102c866tdq-cor.
Chicago
Studio., Falk's Diamond. “Portrait of Man in Sailor Uniform with Arms Crossed.” 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/102c866tdq-cor.