MLA

Missal (Fragment). 0AD. https://collections.library.yale.edu/catalog/2003716.

APA, 6th edition

Missal (fragment). (0 C.E.). [Manuscripts, Medieval England 15th century, Manuscripts, Medieval France 15th century, Missals, Medieval and Renaissance Manuscript Fragments in Beinecke Library, Medieval and Renaissance Manuscripts in Beinecke Library]. https://collections.library.yale.edu/catalog/2003716.