ISBN 0884020215 books & textbook
Constantine Porphyrogenitus: De Administrando Imperio (Dumbarton Oaks Texts)
Porphyrogenitus, Constantine Moravcsik, Gyula Jenkins, R. J. H.
Dumbarton Oaks Research Library and Collection /1967-01-01 Hardcover / 354 Pages
isbn-10: 0884020215 / isbn-13: 9780884020219
