MLA

Cicero, Marcus Tullius. Orator; Orationes. 0AD. https://collections.library.yale.edu/catalog/2057501.

APA, 6th edition

Cicero, M. T. (0 C.E.). Orator; Orationes [Early works to 1800, Manuscripts, Medieval Italy 15th century, Medieval and Renaissance Manuscripts in Beinecke Library]. https://collections.library.yale.edu/catalog/2057501.