MLA
Dairy on Foot, Key West, Fla. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 75. https://digital.library.emory.edu/purl/095j9kd540-cor.
APA, 6th edition
Dairy on foot, Key West, Fla. (Box 75). [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/095j9kd540-cor.
Chicago
“Dairy on Foot, Key West, Fla.” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 75. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/095j9kd540-cor.