MLA
Layne, Cecil. Man at Stand in Front of Seated People under Paintings. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 31. https://digital.library.emory.edu/purl/95269p8d4f-cor.
APA, 6th edition
Layne, C. Man at stand in front of seated people under paintings (Box 31) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/95269p8d4f-cor.
Chicago
Layne, Cecil. “Man at Stand in Front of Seated People under Paintings.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 31. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/95269p8d4f-cor.