MLA
Rotograph Co. (New York, N.Y.). Waterworks Park, Jacksonville, Fla.. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/590dv41nwr-cor.
APA, 6th edition
Rotograph Co. (New York, N.Y.). (unknown)[Waterworks Park, Jacksonville, Fla.]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/590dv41nwr-cor.
Chicago
Rotograph Co. (New York, N.Y.), Waterworks Park, Jacksonville, Fla., unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/590dv41nwr-cor.