Vryonis, S., & Birnbaum, H. (1992). Byzantine studies. Hellenism: ancient, mediaeval, modern 9.
Chicago Style aipamenaVryonis, Speros, and Henrik Birnbaum. "Byzantine Studies." Hellenism: Ancient, Mediaeval, Modern 9 1992.
MLA aipamenaVryonis, Speros, and Henrik Birnbaum. "Byzantine Studies." Hellenism: Ancient, Mediaeval, Modern 9 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.