MLA
Day, Reuben Alexander, Jr. Black Students, 1969-1970 and Undated - “A Personal Letter to Emory Freshmen from a Concerned Professor" Regarding Racial Issues at Emory and Asking Students to “Keep Your Cool” - September 1969. 1969. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 8, Folder 11. https://digital.library.emory.edu/purl/4472v6wxxr-cor.
APA, 6th edition
Day, R. A., Jr. (1969). Black students, 1969-1970 and undated - “A Personal Letter to Emory Freshmen from a Concerned Professor" regarding racial issues at Emory and asking students to “keep your cool” - September 1969 (Box 8, Folder 11) [Letters (correspondence)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4472v6wxxr-cor.
Chicago
Day, Reuben Alexander, Jr. “Black Students, 1969-1970 and Undated - ‘A Personal Letter to Emory Freshmen from a Concerned Professor’ Regarding Racial Issues at Emory and Asking Students to ‘Keep Your Cool’ - September 1969.” Letters (correspondence). Judson C. Ward Office Files, 1969. Box 8, Folder 11. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4472v6wxxr-cor.