MLA
Teich, Curt, and Co. The State Agricultural and Mechanical College for Negroes, Huntsville, Ala. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 69. https://digital.library.emory.edu/purl/235gb5mkq9-cor.
APA, 6th edition
Teich, C., & C. The State Agricultural and Mechanical College for Negroes, Huntsville, Ala. (Box 69) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/235gb5mkq9-cor.
Chicago
Teich, Curt, and Co. “The State Agricultural and Mechanical College for Negroes, Huntsville, Ala.” 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/235gb5mkq9-cor.