MLA
Goldstein, Jacob Herman, and Reuben Alexander Day Jr. Black Studies, Administrative Materials - Letter from Jacob H. Goldstein and Reuben Alexander Day, Jr. to Professor Chappell White, Stating the Dangers of Having Separate Education Plans for Black and White Students, as Well as Having Some Reservations for Some of the New Programs Proposed by the Emory Administration - November 18, 1969. 1969. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 10, Folder 4. https://digital.library.emory.edu/purl/279v15dwck-cor.
APA, 6th edition
Goldstein, J. H., & Day, R. A., Jr. (1969). Black Studies, administrative materials - Letter from Jacob H. Goldstein and Reuben Alexander Day, Jr. to Professor Chappell White, stating the dangers of having separate education plans for Black and white students, as well as having some reservations for some of the new programs proposed by the Emory administration - November 18, 1969 (Box 10, Folder 4) [Letters (correspondence)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/279v15dwck-cor.
Chicago
Goldstein, Jacob Herman, and Reuben Alexander Day Jr. “Black Studies, Administrative Materials - Letter from Jacob H. Goldstein and Reuben Alexander Day, Jr. to Professor Chappell White, Stating the Dangers of Having Separate Education Plans for Black and White Students, as Well as Having Some Reservations for Some of the New Programs Proposed by the Emory Administration - November 18, 1969.” Letters (correspondence). Office of the President Subject Files, 1969. Box 10, Folder 4. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/279v15dwck-cor.