MLA
James Elmer Spyglass Sitting at a Piano Wearing a Suit. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 70. https://digital.library.emory.edu/purl/610wpzgmxs-cor.
APA, 6th edition
James Elmer Spyglass sitting at a piano wearing a suit (Box 70). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/610wpzgmxs-cor.
Chicago
“James Elmer Spyglass Sitting at a Piano Wearing a Suit.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 70. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/610wpzgmxs-cor.