MLA
Wheatley, Phillis. Large Copybook. 1754. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 1, Folder 2. https://digital.library.emory.edu/purl/392g79cpmj-cor.
APA, 6th edition
Wheatley, P. (1754). Large copybook (Box 1, Folder 2) [Manuscripts (document genre)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/392g79cpmj-cor.
Chicago
Wheatley, Phillis. “Large Copybook.” Manuscripts (document genre). Phillis Wheatley Copybooks, 1754. Box 1, Folder 2. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/392g79cpmj-cor.