Columbia subject headings:
Germany--Social conditions--1918-1933.
Germany--Social conditions--1933-1945.
Middle class--Germany--History--20th century.
White collar workers--Germany--History--20th century.
Harvard subject headings:
Clerks--Germany--Social conditions.
Germany--Social conditions--1918-1933.
Germany--Social conditions--1933-1945.
Princeton subject headings:
Germany--Social conditions--1918-1933.
Germany--Social conditions--1933-1945.
Middle class--Germany--History--20th century.
White collar workers--Germany--History--20th century.