MLA
National Post Card Service (Sebring, Fla.). America's oldest house, in America's oldest city, St. Augustine, Fla. [hand colored]. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/6214mw6mdj-cor.
APA, 6th edition
National Post Card Service (Sebring, Fla.). (unknown)[America's oldest house, in America's oldest city, St. Augustine, Fla. [hand colored]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/6214mw6mdj-cor.
Chicago
National Post Card Service (Sebring, Fla.), America's oldest house, in America's oldest city, St. Augustine, Fla. [hand colored], unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/6214mw6mdj-cor.