MLA
J.W. Williams, an African American Man, Sitting on a Chair Reading a Book, While Wearing a Suit and Eyeglasses. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 74. https://digital.library.emory.edu/purl/682k6djhd4-cor.
APA, 6th edition
J.W. Williams, an African American man, sitting on a chair reading a book, while wearing a suit and eyeglasses (Box 74). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/682k6djhd4-cor.
Chicago
“J.W. Williams, an African American Man, Sitting on a Chair Reading a Book, While Wearing a Suit and Eyeglasses.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 74. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/682k6djhd4-cor.