MLA
Mann, J. J. First Baptist Church, Clarksdale, Miss., Where Rev. E.G. Mason Is Pastor, with African Americans Sitting on the Front Steps. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 33. https://digital.library.emory.edu/purl/286nzs7h7n-cor.
APA, 6th edition
Mann, J. J. First Baptist Church, Clarksdale, Miss., where Rev. E.G. Mason is Pastor, with African Americans sitting on the front steps (Box 33) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/286nzs7h7n-cor.
Chicago
Mann, J. J. “First Baptist Church, Clarksdale, Miss., Where Rev. E.G. Mason Is Pastor, with African Americans Sitting on the Front Steps.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 33. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/286nzs7h7n-cor.