Columbia subject headings:
Deacons--Germany--History--20th century.
Euthanasia--Germany--History--20th century.
Inner missions--Germany--History--20th century.
Jews--Persecutions--Germany--History--20th century.
Harvard subject headings:
Deacons--Germany--History--20th century.
Euthanasia--Germany--History--20th century
Inner missions--Germany--History--20th century.
Jews--Persecutions--Germany--History--20th century.
Princeton subject headings:
Deacons--Germany--Protestant churches.
Germany--Church history--20th century.
National socialism--Religious aspects.