MLA
Louis Kaufmann & Sons (Baltimore, Md.). Lincoln Hall, Storer College, Harpers Ferry, W. Va.. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/491fj6q5bh-cor.
APA, 6th edition
Louis Kaufmann & Sons (Baltimore, Md.). (unknown)[Lincoln Hall, Storer College, Harpers Ferry, W. Va.]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/491fj6q5bh-cor.
Chicago
Louis Kaufmann & Sons (Baltimore, Md.), Lincoln Hall, Storer College, Harpers Ferry, W. Va., unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/491fj6q5bh-cor.