MLA

Fragments of Manuscripts. 1200. https://collections.library.yale.edu/catalog/17451918.

APA, 6th edition

Fragments of manuscripts. (1200). [Liturgy, Early works to 1800, Prayers and devotions, Books of hours, Graduals, Missals, Psalters (books), Manuscripts, Medieval Austria 15th century, Manuscripts, Medieval England 13th century, Manuscripts, Medieval France 14th century, Manuscripts, Medieval France 15th century, Manuscripts, Medieval Italy 14th century, Manuscripts, Medieval Italy 16th century, Manuscripts, Medieval Netherlands 15th century, Medieval and Renaissance Manuscript Fragments in Beinecke Library, Medieval and Renaissance Manuscripts in Beinecke Library]. https://collections.library.yale.edu/catalog/17451918.