MLA
Electric Studio (Philadelphia, Pa.). African American man sitting on a chair while wearing a suit and hat. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/938jdfn31k-cor.
APA, 6th edition
Electric Studio (Philadelphia, Pa.). (unknown)[African American man sitting on a chair while wearing a suit and hat]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/938jdfn31k-cor.
Chicago
Electric Studio (Philadelphia, Pa.), African American man sitting on a chair while wearing a suit and hat, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/938jdfn31k-cor.