MLA
Mathews Art Service (N.Y.). Sugar cane mill, Barbados, B.W.I.. July 30, 1939. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/52908kprrp-cor.
APA, 6th edition
Mathews Art Service (N.Y.). (July 30, 1939)[Sugar cane mill, Barbados, B.W.I.]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/52908kprrp-cor.
Chicago
Mathews Art Service (N.Y.), Sugar cane mill, Barbados, B.W.I., July 30, 1939, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/52908kprrp-cor.