Doctrinale
MLA
Alexander, de Villa Dei. Doctrinale. 0AD. https://collections.library.yale.edu/catalog/2032617.
APA, 6th edition
Alexander, de V. D. (0 C.E.). Doctrinale [Annotations, Decorated initials, Illuminated manuscripts, Manuscripts, Medieval--Italy--13th century.--local, Marginalia, Rubrics]. https://collections.library.yale.edu/catalog/2032617.