MLA
Lindsey & Brown (Asheville, N.C.). A group of African American prisoners standing on a hillside and an exposed rock face with picks in vicinity of Asheville, N.C.. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/808v9s4n18-cor.
APA, 6th edition
Lindsey & Brown (Asheville, N.C.). (unknown)[A group of African American prisoners standing on a hillside and an exposed rock face with picks in vicinity of Asheville, N.C.]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/808v9s4n18-cor.
Chicago
Lindsey & Brown (Asheville, N.C.), A group of African American prisoners standing on a hillside and an exposed rock face with picks in vicinity of Asheville, N.C., unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/808v9s4n18-cor.