MLA
Unknown 12-String Guitar Player Surrounded by Men Leaning over a Wooden Wall with Two Young African American Men Dancing in Front of Them. 1918. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 27. https://digital.library.emory.edu/purl/856n02v721-cor.
APA, 6th edition
Unknown 12-string guitar player surrounded by men leaning over a wooden wall with two young African American men dancing in front of them (Box 27). (1918). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/856n02v721-cor.
Chicago
“Unknown 12-String Guitar Player Surrounded by Men Leaning over a Wooden Wall with Two Young African American Men Dancing in Front of Them.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, 1918. Box 27. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/856n02v721-cor.