MLA
Duncan. Duncan's Commentary. [publisher not identified], 0AD. Robert W. Woodruff Health Sciences Center. Library. https://digital.library.emory.edu/purl/023vt4bcj3-cor.
APA, 6th edition
D. (0 C.E.). Duncan's Commentary. [Manuscripts.]. [publisher not identified]; Robert W. Woodruff Health Sciences Center. Library. https://digital.library.emory.edu/purl/023vt4bcj3-cor.
Chicago
Duncan. “Duncan's Commentary.” Manuscripts. Medical Heritage Imprints Collection . [Place of publication not identified]: [publisher not identified], 0AD. Robert W. Woodruff Health Sciences Center. Library. https://digital.library.emory.edu/purl/023vt4bcj3-cor.