MLA
Van Noy Inter-State Company. Sponge Industry : Bringing in a Boat Load, Key West, Florida. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 71. https://digital.library.emory.edu/purl/9010p2ngk4-cor.
APA, 6th edition
Van Noy Inter-State Company. Sponge industry : bringing in a boat load, Key West, Florida (Box 71) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/9010p2ngk4-cor.
Chicago
Noy Inter-State Company., Van. “Sponge Industry : Bringing in a Boat Load, Key West, Florida.” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 71. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/9010p2ngk4-cor.