Golden Bulls of the emperors Theodosius II, Michael III, and Romanus III
MLA
Golden Bulls of the Emperors Theodosius II, Michael III, and Romanus III. 0AD. https://collections.library.yale.edu/catalog/9999005.
APA, 6th edition
Golden Bulls of the emperors Theodosius II, Michael III, and Romanus III. (0 C.E.). [Medieval and Renaissance Manuscripts in Beinecke Library]. https://collections.library.yale.edu/catalog/9999005.