MLA

Church, Catholic. Book of Hours (Fragment). 0AD. https://collections.library.yale.edu/catalog/10543757.

APA, 6th edition

Church, C. (0 C.E.). Book of hours (fragment). [Early works to 1800, Books of hours, Manuscripts, Medieval France 15th century, Medieval and Renaissance Manuscript Fragments in Beinecke Library, Medieval and Renaissance Manuscripts in Beinecke Library]. https://collections.library.yale.edu/catalog/10543757.