MLA
Pict... Q. Boll Weevil : Four African American Boys Picking Cotton in the Rows between the Plants. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 68. https://digital.library.emory.edu/purl/262s4mw6qc-cor.
APA, 6th edition
Pict... Q. Boll Weevil : four African American boys picking cotton in the rows between the plants (Box 68). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/262s4mw6qc-cor.
Chicago
“Pict... Q. Boll Weevil : Four African American Boys Picking Cotton in the Rows between the Plants.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 68. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/262s4mw6qc-cor.