Columbia subject headings:
Harvard subject headings:
Germany--Colonies--Economic conditions.
Germany--Economic policy.
National characteristics, German.
National socialism and labor.
Work ethic--Germany--History.
Work--Social aspects--Germany--History.
Princeton subject headings:
Germans--Attitudes--Congresses.
Germany--Colonies--Economic conditions--Congresses.
Germany--Economic policy--Congresses.
National characteristics, German--Congresses.
National socialism and labor--Congresses.
Work--Philosophy--Congresses.