MLA
An African American Man Seated on a Stool in a Corral Milking a Cow with Other Cows and Chickens around Him. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 68. https://digital.library.emory.edu/purl/668x95x6fj-cor.
APA, 6th edition
An African American man seated on a stool in a corral milking a cow with other cows and chickens around him (Box 68). [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/668x95x6fj-cor.
Chicago
“An African American Man Seated on a Stool in a Corral Milking a Cow with Other Cows and Chickens around Him.” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 68. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/668x95x6fj-cor.