MLA
Teich, Curt, and Co. Diorama of Stephen Foster's Song Old Black Joe, 1860 at the Stephen Foster Memorial on the Suwannee River, White Springs, Florida. 1860. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 74. https://digital.library.emory.edu/purl/235gb5mkpf-cor.
APA, 6th edition
Teich, C., & C. (1860). Diorama of Stephen Foster's song Old Black Joe, 1860 at the Stephen Foster Memorial on the Suwannee River, White Springs, Florida (Box 74) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/235gb5mkpf-cor.
Chicago
Teich, Curt, and Co. “Diorama of Stephen Foster's Song Old Black Joe, 1860 at the Stephen Foster Memorial on the Suwannee River, White Springs, Florida.” Postcards. Robert Langmuir African American Photograph Collection, 1860. Box 74. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/235gb5mkpf-cor.