MLA
Edrington, S. L. African American Cook Wearing a Uniform and Hat, Holding Two Knives. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 70. https://digital.library.emory.edu/purl/378tb2rbs7-cor.
APA, 6th edition
Edrington, S. L. African American cook wearing a uniform and hat, holding two knives (Box 70) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/378tb2rbs7-cor.
Chicago
Edrington, S. L. “African American Cook Wearing a Uniform and Hat, Holding Two Knives.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 70. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/378tb2rbs7-cor.