To Vyzantio kata to 12o aiōna :
kanoniko dikaio, kratos kai koinōnia /
ekdotes̄, N. Oikonomidēs = Byzantium in the 12th century : canon law, state and society / edited by N. Oikonomides.

APA Citation

Oikonomidès, N., Hetaireia Vyzantinōn kai Metavyzantinōn Meletōn. (1991). To Vyzantio kata to 12o aiōna: kanoniko dikaio, kratos kai koinōnia. Athena: Hetaireia Vyzantinōn kai Metavyzantinōn Meletōn.

MLA Citation

Oikonomidès, Nicolas, and Hetaireia Vyzantinōn kai Metavyzantinōn Meletōn. To Vyzantio Kata to 12o Aiōna: Kanoniko Dikaio, Kratos Kai Koinōnia. Athena: Hetaireia Vyzantinōn kai Metavyzantinōn Meletōn, 1991.

Warning: These citations may not always be complete (especially for serials).