MLA
Two Women and a Man Standing at the Front Gate of a House. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 75. https://digital.library.emory.edu/purl/747dr7sqw2-cor.
APA, 6th edition
Two women and a man standing at the front gate of a house (Box 75). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/747dr7sqw2-cor.
Chicago
“Two Women and a Man Standing at the Front Gate of a House.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 75. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/747dr7sqw2-cor.