MLA
Gale, James Scarth, 1863-1937. Letter from James Scarth Gale to Yun Ch'i-ho - April 25. 1915. April 25, 1915. Yun Ch‘i-ho Papers. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/494vhhmhzq-cor.
APA, 6th edition
Gale, James Scarth, 1863-1937. (April 25, 1915)[Letter from James Scarth Gale to Yun Ch'i-ho - April 25. 1915]. Yun Ch‘i-ho Papers, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/494vhhmhzq-cor.
Chicago
Gale, James Scarth, 1863-1937, Letter from James Scarth Gale to Yun Ch'i-ho - April 25. 1915, April 25, 1915, Yun Ch‘i-ho Papers, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/494vhhmhzq-cor.