MLA
Nowell, F. A. Sweet Potato Field. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 64. https://digital.library.emory.edu/purl/259c59zw6d-cor.
APA, 6th edition
Nowell, F. A. Sweet potato field (Box 64) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/259c59zw6d-cor.
Chicago
Nowell, F. A. “Sweet Potato Field.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 64. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/259c59zw6d-cor.