MLA
Co., E. C. Kropp. Negro Baptising, Tennessee River, Decatur, Ala. 1911. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 73. https://digital.library.emory.edu/purl/808v9s4mzg-cor.
APA, 6th edition
Co., E. C. K. (1911). Negro baptising, Tennessee River, Decatur, Ala. (Box 73) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/808v9s4mzg-cor.
Chicago
Co., E. C. Kropp. “Negro Baptising, Tennessee River, Decatur, Ala.” Postcards. Robert Langmuir African American Photograph Collection, 1911. Box 73. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/808v9s4mzg-cor.