MLA
Stanley H. Willis Presents World's Champion, Vivid, Daring, Sensational Lindy Hoppers. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 69. https://digital.library.emory.edu/purl/4644qrfjbd-cor.
APA, 6th edition
Stanley H. Willis presents World's champion, vivid, daring, sensational Lindy Hoppers (Box 69). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4644qrfjbd-cor.
Chicago
“Stanley H. Willis Presents World's Champion, Vivid, Daring, Sensational Lindy Hoppers.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 69. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4644qrfjbd-cor.