MLA
Allen, Young John, 1836-1907. Letter from Young John Allen to Yun Ch'i-ho (Seoul, Korea) regarding the Japan–Korea Treaty of 1905 making Korea a protectorate of the Empire of Japan - November 30, 1905. November 30, 1905. Yun Ch‘i-ho Papers. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/515bcc2gz8-cor.
APA, 6th edition
Allen, Young John, 1836-1907. (November 30, 1905)[Letter from Young John Allen to Yun Ch'i-ho (Seoul, Korea) regarding the Japan–Korea Treaty of 1905 making Korea a protectorate of the Empire of Japan - November 30, 1905]. Yun Ch‘i-ho Papers, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/515bcc2gz8-cor.
Chicago
Allen, Young John, 1836-1907, Letter from Young John Allen to Yun Ch'i-ho (Seoul, Korea) regarding the Japan–Korea Treaty of 1905 making Korea a protectorate of the Empire of Japan - November 30, 1905, November 30, 1905, Yun Ch‘i-ho Papers, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/515bcc2gz8-cor.