MLA
Leaf from "Sentences" of Peter Lombard, 14th Century, Latin. Two Columns of 50 Lines Each on Either Side of Thin Vellum Sheet 19 1/2 x 14 1/2 Cm. Miniscule Lettering and Marginalia in Brown with Red and Blue Initial and Pagination. 1300. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 1, Folder 4. https://digital.library.emory.edu/purl/2085hqc01r-cor.
APA, 6th edition
Leaf from "Sentences" of Peter Lombard, 14th century, Latin. Two columns of 50 lines each on either side of thin vellum sheet 19 1/2 x 14 1/2 cm. Miniscule lettering and marginalia in brown with red and blue initial and pagination (Box 1, Folder 4). (1300). [Manuscripts (documents)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/2085hqc01r-cor.
Chicago
“Leaf from ‘Sentences’ of Peter Lombard, 14th Century, Latin. Two Columns of 50 Lines Each on Either Side of Thin Vellum Sheet 19 1/2 x 14 1/2 Cm. Miniscule Lettering and Marginalia in Brown with Red and Blue Initial and Pagination.” Manuscripts (documents). Ancient, Medieval, and Renaissance Eastern and Western Manuscript Collection, 347-1653, 1300. Box 1, Folder 4. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/2085hqc01r-cor.