MLA

Boniohannes, de Messana. Quadripartitus Figurarum Moralium. 0AD. https://collections.library.yale.edu/catalog/11403240.

APA, 6th edition

Boniohannes, de M. (0 C.E.). Quadripartitus figurarum moralium [Manuscripts, Renaissance Italy 15th century, Medieval and Renaissance Manuscripts in Beinecke Library]. https://collections.library.yale.edu/catalog/11403240.