MLA
Two Men Sitting with Guitar and Harmonica. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 24. https://digital.library.emory.edu/purl/6623bk3jfj-cor.
APA, 6th edition
Two men sitting with guitar and harmonica (Box 24). [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/6623bk3jfj-cor.
Chicago
“Two Men Sitting with Guitar and Harmonica.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 24. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/6623bk3jfj-cor.