MLA
Rich, Richard H., 1901-1975. Letter from Richard H. Rich, President of Rich's department stores, responding to John Wesley Dobbs, expressing regret at the ending of a business relationship between John Wesley Dobbs and Rich's department stores, while stating that while services in the stores are separated by race, they are equal in quality - September 21, 1960. September 21, 1960. Richard H. Rich Papers, 1902-1981. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/525k98sfpv-cor.
APA, 6th edition
Rich, Richard H., 1901-1975. (September 21, 1960)[Letter from Richard H. Rich, President of Rich's department stores, responding to John Wesley Dobbs, expressing regret at the ending of a business relationship between John Wesley Dobbs and Rich's department stores, while stating that while services in the stores are separated by race, they are equal in quality - September 21, 1960]. Richard H. Rich Papers, 1902-1981, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/525k98sfpv-cor.
Chicago
Rich, Richard H., 1901-1975, Letter from Richard H. Rich, President of Rich's department stores, responding to John Wesley Dobbs, expressing regret at the ending of a business relationship between John Wesley Dobbs and Rich's department stores, while stating that while services in the stores are separated by race, they are equal in quality - September 21, 1960, September 21, 1960, Richard H. Rich Papers, 1902-1981, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/525k98sfpv-cor.