MLA
Neel, Tom. The Whitney Apartments. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 71. https://digital.library.emory.edu/purl/607gqnk9bs-cor.
APA, 6th edition
Neel, T. The Whitney Apartments (Box 71) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/607gqnk9bs-cor.
Chicago
Neel, Tom. “The Whitney Apartments.” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 71. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/607gqnk9bs-cor.