MLA
Dunbar Branch Library in Oklahoma City. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 69. https://digital.library.emory.edu/purl/808v9s4n0f-cor.
APA, 6th edition
Dunbar Branch Library in Oklahoma City (Box 69). [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/808v9s4n0f-cor.
Chicago
“Dunbar Branch Library in Oklahoma City.” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 69. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/808v9s4n0f-cor.