MLA
Webster, Daniel, 1782-1852. Famous Gems of Prose: The Slave Trade, by Daniel Webster. between 1848 and 1910. William H. Scott Family Papers, 1848-1982. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/180vq83d08-cor.
APA, 6th edition
Webster, Daniel, 1782-1852. (between 1848 and 1910)[Famous Gems of Prose: The Slave Trade, by Daniel Webster]. William H. Scott Family Papers, 1848-1982, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/180vq83d08-cor.
Chicago
Webster, Daniel, 1782-1852, Famous Gems of Prose: The Slave Trade, by Daniel Webster, between 1848 and 1910, William H. Scott Family Papers, 1848-1982, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/180vq83d08-cor.