Constantine VII Porphyrogenitus Emperor of the East 905-959.
De administrando imperio /
Constantine Porphyregenitus ; Greek text edited by Gy. Moravcsik ; English translation by R.J.H. Jenkins 
. - New, revised edition 
. - Washington : Dumbarton Oaks Center for Byzantine Studies,  1967 
. - XII, 341 p.  24 cm. 
 - Corpus fontium historiae Byzantinae  v. 1 Dumbarton Oaks texts  1 .