Columbia subject headings:
Luther, Martin, 1483-1546.
Lutheran Church--Catechisms--History and criticism.
Melanchthon, Philip, 1497-1560.
Theology.
Harvard subject headings:
Luther, Martin, 1483-1546--Theology.
Lutheran Church--Catechisms--History and criticism.
Melanchthon, Philip, 1497-1560
Princeton subject headings: