MLA

Sacramentary. 0AD. https://collections.library.yale.edu/catalog/10621979.

APA, 6th edition

Sacramentary. (0 C.E.). [Manuscripts, Medieval Belgium 10th century, Manuscripts, Medieval Rhineland (Germany) 10th century, Medieval and Renaissance Manuscript Fragments in Beinecke Library, Medieval and Renaissance Manuscripts in Beinecke Library]. https://collections.library.yale.edu/catalog/10621979.