MLA
Der Lucas Studio. Casper Holstein with African American Gangsters. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 31. https://digital.library.emory.edu/purl/221tdz08r7-cor.
APA, 6th edition
Der Lucas Studio. Casper Holstein with African American gangsters (Box 31) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/221tdz08r7-cor.
Chicago
Lucas Studio., Der. “Casper Holstein with African American Gangsters.” 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/221tdz08r7-cor.