MLA
Kauffman Cowell (Philadelphia). An African American man in a suit seated in a chair. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/11615dv467-cor.
APA, 6th edition
Kauffman Cowell (Philadelphia). (unknown)[An African American man in a suit seated in a chair]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/11615dv467-cor.
Chicago
Kauffman Cowell (Philadelphia), An African American man in a suit seated in a chair, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/11615dv467-cor.