MLA
Man Outside Stone House That Says Washington's Headquarters Antiquarium. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 16. https://digital.library.emory.edu/purl/3246q573zg-cor.
APA, 6th edition
Man outside stone house that says Washington's Headquarters Antiquarium (Box 16). [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3246q573zg-cor.
Chicago
“Man Outside Stone House That Says Washington's Headquarters Antiquarium.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 16. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3246q573zg-cor.