MLA

Antiphonal. 0AD. https://collections.library.yale.edu/catalog/11684592.

APA, 6th edition

Antiphonal. (0 C.E.). [Manuscripts, Renaissance Italy 16th century, Medieval and Renaissance Manuscript Fragments in Beinecke Library, Medieval and Renaissance Manuscripts in Beinecke Library]. https://collections.library.yale.edu/catalog/11684592.