MLA
Cheney, A. L. Louis Viens, 35 Years Old, 3 Ft. 11 in. Tall. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 69. https://digital.library.emory.edu/purl/1848pk0p5m-cor.
APA, 6th edition
Cheney, A. L. Louis Viens, 35 years old, 3 ft. 11 in. tall (Box 69) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/1848pk0p5m-cor.
Chicago
Cheney, A. L. “Louis Viens, 35 Years Old, 3 Ft. 11 in. Tall.” 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/1848pk0p5m-cor.