MLA
Kress, S. H., and Co. Negro Baptizing, Natchez, Miss. [Hand Colored]. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 73. https://digital.library.emory.edu/purl/0171vhhmjv-cor.
APA, 6th edition
Kress, S. H., & C. Negro baptizing, Natchez, Miss. [hand colored] (Box 73) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0171vhhmjv-cor.
Chicago
Kress, S.H., and Co. “Negro Baptizing, Natchez, Miss. [Hand Colored].” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 73. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0171vhhmjv-cor.