MLA
Richter & Co. Art Studio (Philadelphia, Pa.). The great grand child of Thompson, wearing a dress standing outside by a fence. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/5977sqv9wd-cor.
APA, 6th edition
Richter & Co. Art Studio (Philadelphia, Pa.). (unknown)[The great grand child of Thompson, wearing a dress standing outside by a fence]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/5977sqv9wd-cor.
Chicago
Richter & Co. Art Studio (Philadelphia, Pa.), The great grand child of Thompson, wearing a dress standing outside by a fence, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/5977sqv9wd-cor.