Columbia subject headings:
Hermann, Rudolf, 1887-1962--Criticism and interpretation.
Hirsch, Emanuel, 1888-1972--Criticism and interpretation.
Holl, Karl, 1866-1926--Criticism and interpretation.
Luther, Martin, 1483-1546--Study and teaching--History--20th century.
Harvard subject headings:
Hermann, Rudolf, 1887-1962.
Hirsch, Emanuel, 1888-1972.
Holl, Karl, 1866-1926.
Luther, Martin, 1483-1546
Lutheran Church--Doctrines--History--20th century.
Protestant churches--Doctrines--History--20th century
Theology, Doctrinal--History--20th century.
Princeton subject headings: