Columbia subject headings:
Canon law--Early church, ca. 30-600.
Christian literature, Early.
Constitutions.
Council and synods.
Harvard subject headings:
Canon law--Early church, ca. 30-600--Early works to 1800.
Christian literature, Early--Collections--Early works to 1800.
Councils and synods--Early works to 1800.
Princeton subject headings:
Canon law--Early church, ca. 30-600.
Christian literature, Early--Collections.
Councils and synods.