MLA
African American Clergyman Sitting on a Chair While Wearing a Suit and Cross. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 74. https://digital.library.emory.edu/purl/81937pvmfx-cor.
APA, 6th edition
African American clergyman sitting on a chair while wearing a suit and cross (Box 74). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/81937pvmfx-cor.
Chicago
“African American Clergyman Sitting on a Chair While Wearing a Suit and Cross.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 74. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/81937pvmfx-cor.