MLA
Eckstone, C. A Pipe Dream : an African American Man Holding His Hand to His Face. 1907. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 72. https://digital.library.emory.edu/purl/460qrfj6rr-cor.
APA, 6th edition
Eckstone, C. (1907). A pipe dream : an African American man holding his hand to his face (Box 72) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/460qrfj6rr-cor.
Chicago
Eckstone, C. “A Pipe Dream : an African American Man Holding His Hand to His Face.” Photographic postcards. Robert Langmuir African American Photograph Collection, 1907. Box 72. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/460qrfj6rr-cor.