MLA
Swords Bros. (Hanover, Pa.). Oval portrait of inventor Joseph Winters. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/426m0cfxss-cor.
APA, 6th edition
Swords Bros. (Hanover, Pa.). (unknown)[Oval portrait of inventor Joseph Winters]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/426m0cfxss-cor.
Chicago
Swords Bros. (Hanover, Pa.), Oval portrait of inventor Joseph Winters, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/426m0cfxss-cor.