MLA
Gorman's Studio (Detroit, Mich.). African American family portrait. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/054kkwh76k-cor.
APA, 6th edition
Gorman's Studio (Detroit, Mich.). (unknown)[African American family portrait]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/054kkwh76k-cor.
Chicago
Gorman's Studio (Detroit, Mich.), African American family portrait, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/054kkwh76k-cor.