Columbia subject headings:
Apologetics--History--Early church, ca. 30-600.
Athanasius, Saint, Patriarch of Alexandria, -373. Orations of S. Athanasius against the Arians.
Harvard subject headings:
Athanasius, Saint, Patriarch of Alexandria, -373. Orations of S. Athanasius against the Arians
Council of Serdica (343)
Princeton subject headings: