MLA
Marken & Bielfeld, Inc. (Frederick, Md.). Braddock's Spring, Braddock Heights, Md.. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/535t76hdt7-cor.
APA, 6th edition
Marken & Bielfeld, Inc. (Frederick, Md.). (unknown)[Braddock's Spring, Braddock Heights, Md.]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/535t76hdt7-cor.
Chicago
Marken & Bielfeld, Inc. (Frederick, Md.), Braddock's Spring, Braddock Heights, Md., unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/535t76hdt7-cor.