MLA
Yun, Ch'i-ho, 1865-1945. Diary of Yun Ch'i-ho - 1940. 1940. Yun Ch‘i-ho Papers. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/5977sqvc38-cor.
APA, 6th edition
Yun, Ch'i-ho, 1865-1945. (1940)[Diary of Yun Ch'i-ho - 1940]. Yun Ch‘i-ho Papers, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/5977sqvc38-cor.
Chicago
Yun, Ch'i-ho, 1865-1945, Diary of Yun Ch'i-ho - 1940, 1940, Yun Ch‘i-ho Papers, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/5977sqvc38-cor.