MLA
Havens. Scene in Coconut Grove, Florida : Three African American Men Breaking Open Coconuts underneath Trees [Hand Colored]. 1915. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 68. https://digital.library.emory.edu/purl/0171vhhmkj-cor.
APA, 6th edition
H. (1915). Scene in coconut grove, Florida : three African American men breaking open coconuts underneath trees [hand colored] (Box 68) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0171vhhmkj-cor.
Chicago
Havens. “Scene in Coconut Grove, Florida : Three African American Men Breaking Open Coconuts underneath Trees [Hand Colored].” Postcards. Robert Langmuir African American Photograph Collection, 1915. Box 68. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0171vhhmkj-cor.