MLA

Prayers, for Augustinian Use. 0AD. https://collections.library.yale.edu/catalog/2055989.

APA, 6th edition

Prayers, for Augustinian use. (0 C.E.). [Prayers and devotions, Early works to 1800, Manuscripts, Medieval Germany 15th century, Medieval and Renaissance Manuscripts in Beinecke Library]. https://collections.library.yale.edu/catalog/2055989.