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