Columbia subject headings:
Harvard subject headings:
Germany--Economic conditions--20th century.
Germany--Economic policy--20th century.
Germany--History--20th century.
Germany--History--21st century.
Germany--Politics and government--20th century
Germany--Social conditions--20th century.
Princeton subject headings:
Germany--Economic conditions--20th century.
Germany--Economic policy--20th century.
Germany--History--20th century.
Germany--Politics and government--20th century.
Germany--Social conditions--20th century.