Columbia subject headings:
Harvard subject headings:
Church--History of doctrines--16th century
Luther, Martin, 1483-1546
Two kingdoms (Lutheran theology)--History of doctrines--16th century.
Princeton subject headings:
Church--History of doctrines--16th century.
Luther, Martin, 1483-1546.
Two kingdoms (Lutheran theology)--History of doctrines--16th century.