Columbia subject headings:
Harvard subject headings:
Catholic youth--Germany--History--20th century--Sources.
Germany--Church history--20th century--Sources.
World War, 1939-1945--Religious aspects--Catholic Church
Princeton subject headings:
Catholic youth--Germany--History--20th century--Sources.
Germany--Church history--20th century--Sources.
World War, 1939-1945--Religious aspects--Catholic Church.