Columbia subject headings:
Christian literature, Early--History and criticism.
Greek literature--History and criticism.
Photius I, Saint, Patriarch of Constantinople, approximately 820-approximately 891--Sources.
Photius I, Saint, Patriarch of Constantinople, approximately 820-approximately 891. Bibliotheca.
Harvard subject headings:
Princeton subject headings:
Christian literature, Early--History and criticism.
Greek literature--History and criticism.
Photius I, Saint, Patriarch of Constantinople, approximately 820-approximately 891--Sources.
Photius I, Saint, Patriarch of Constantinople, approximately 820-approximately 891. Bibliotheca.