MLA
Edsall Studio (N.Y.). African American man holding a violin. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/784zgmsbgb-cor.
APA, 6th edition
Edsall Studio (N.Y.). (unknown)[African American man holding a violin]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/784zgmsbgb-cor.
Chicago
Edsall Studio (N.Y.), African American man holding a violin, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/784zgmsbgb-cor.