MLA
Robinson, Dolores M. Letter from Dolores M. Robinson, to Richard H. Rich, President of Rich's Department Stores, Regarding the Lack of Movement on the Cleaning and Updating of Black Facilities within the Store - April 11, 1958. 1958. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 37, Folder 1. https://digital.library.emory.edu/purl/945cc2frf1-cor.
APA, 6th edition
Robinson, D. M. (1958). Letter from Dolores M. Robinson, to Richard H. Rich, President of Rich's department stores, regarding the lack of movement on the cleaning and updating of Black facilities within the store - April 11, 1958 (Box 37, Folder 1) [Correspondence]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/945cc2frf1-cor.
Chicago
Robinson, Dolores M. “Letter from Dolores M. Robinson, to Richard H. Rich, President of Rich's Department Stores, Regarding the Lack of Movement on the Cleaning and Updating of Black Facilities within the Store - April 11, 1958.” Correspondence. Richard H. Rich Papers, 1902-1981, 1958. Box 37, Folder 1. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/945cc2frf1-cor.