MLA
Teich, Curt, and Co. Flower Vendor, Charleston, S.C., America's Most Historic City. 1957. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 71. https://digital.library.emory.edu/purl/593ttdz0d6-cor.
APA, 6th edition
Teich, C., & C. (1957). Flower vendor, Charleston, S.C., America's Most Historic City (Box 71) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/593ttdz0d6-cor.
Chicago
Teich, Curt, and Co. “Flower Vendor, Charleston, S.C., America's Most Historic City.” Postcards. Robert Langmuir African American Photograph Collection, 1957. Box 71. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/593ttdz0d6-cor.