Columbia subject headings:
Christianity--Philosophy.
Church history--Primitive and early church, ca. 30-600.
Utopias--Religious aspects.
Harvard subject headings:
Church history--Primitive and early church, ca. 30-600
Utopias.
Princeton subject headings:
Christianity--Philosophy.
Church history--Primitive and early church, ca. 30-600.
Utopias--Religious aspects.