Columbia subject headings:
Luther, Martin, 1483-1546.
Mary, Blessed Virgin, Saint--History of doctrines.
Theology.
Harvard subject headings:
Luther, Martin, 1483-1546--Contributions in theology.
Mary, Blessed Virgin, Saint--History of doctrines.
Princeton subject headings:
Luther, Martin, 1483-1546--Theology.
Mary, Blessed Virgin, Saint--History of doctrines.