MLA

Virgil. Georgica. 0AD. https://collections.library.yale.edu/catalog/11179095.

APA, 6th edition

V. (0 C.E.). Georgica [Manuscripts, Medieval Italy 11th century, Medieval and Renaissance Manuscript Fragments in Beinecke Library, Medieval and Renaissance Manuscripts in Beinecke Library]. https://collections.library.yale.edu/catalog/11179095.