MLA
Teich, Curt, and Co. Dorothy Hall, Guest House, Tuskegee Institute, Alabama. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 69. https://digital.library.emory.edu/purl/4579s4mw9j-cor.
APA, 6th edition
Teich, C., & C. Dorothy Hall, guest house, Tuskegee Institute, Alabama (Box 69) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4579s4mw9j-cor.
Chicago
Teich, Curt, and Co. “Dorothy Hall, Guest House, Tuskegee Institute, Alabama.” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 69. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4579s4mw9j-cor.