MLA
Krebbs, S. H., and Co. Fine Sport, Boating and Fishing, Florida : with a Man in a Rowboat and Another African American Man in a Canoe. 1912. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 70. https://digital.library.emory.edu/purl/9010p2ngjz-cor.
APA, 6th edition
Krebbs, S. H., & C. (1912). Fine sport, boating and fishing, Florida : with a man in a rowboat and another African American man in a canoe (Box 70) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/9010p2ngjz-cor.
Chicago
Krebbs, S. H., and Co. “Fine Sport, Boating and Fishing, Florida : with a Man in a Rowboat and Another African American Man in a Canoe.” Postcards. Robert Langmuir African American Photograph Collection, 1912. Box 70. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/9010p2ngjz-cor.