MLA

Unidentified German Verse. 0AD. https://collections.library.yale.edu/catalog/2043580.

APA, 6th edition

Unidentified German verse. (0 C.E.). [Manuscripts, Medieval, Medieval and Renaissance Manuscript Fragments in Beinecke Library, Medieval and Renaissance Manuscripts in Beinecke Library]. https://collections.library.yale.edu/catalog/2043580.