Cistercian gradual
MLA
Cistercian Gradual. 0AD. https://collections.library.yale.edu/catalog/9998862.
APA, 6th edition
Cistercian gradual. (0 C.E.). [Manuscripts, Medieval Germany 14th century, Medieval and Renaissance Manuscripts in Beinecke Library]. https://collections.library.yale.edu/catalog/9998862.