MLA
Mountain Climbers in St. Thomas, V.I. : a Man Riding a Donkey Pulling Another Donkey behind Him. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 77. https://digital.library.emory.edu/purl/713905qfvm-cor.
APA, 6th edition
Mountain climbers in St. Thomas, V.I. : a man riding a donkey pulling another donkey behind him (Box 77). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/713905qfvm-cor.
Chicago
“Mountain Climbers in St. Thomas, V.I. : a Man Riding a Donkey Pulling Another Donkey behind Him.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 77. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/713905qfvm-cor.