MLA
African American Man Sitting on a Chair with His Legs Crossed, next to a Table with a Flower Filled Vase on It, While Wearing a Suit. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 72. https://digital.library.emory.edu/purl/85370rxwgm-cor.
APA, 6th edition
African American man sitting on a chair with his legs crossed, next to a table with a flower filled vase on it, while wearing a suit (Box 72). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/85370rxwgm-cor.
Chicago
“African American Man Sitting on a Chair with His Legs Crossed, next to a Table with a Flower Filled Vase on It, While Wearing a Suit.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 72. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/85370rxwgm-cor.