MLA
Hugh C. Leighton Co., Manufacturers (Portland, Me.). Charleston, S.C. The old market - was once a slave market. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/361rfj6q7m-cor.
APA, 6th edition
Hugh C. Leighton Co., Manufacturers (Portland, Me.). (unknown)[Charleston, S.C. The old market - was once a slave market]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/361rfj6q7m-cor.
Chicago
Hugh C. Leighton Co., Manufacturers (Portland, Me.), Charleston, S.C. The old market - was once a slave market, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/361rfj6q7m-cor.