Columbia subject headings:
Harvard subject headings:
Germany--Foreign relations--1871-1918.
Germany--History--1871-1918.
Germany--Politics and government--1871-1918.
Germany--Social conditions--1871-1918.
Princeton subject headings:
Germany--Foreign relations--1871-1918.
Germany--History--1871-1918.
Germany--Politics and government--1871-1918.
Germany--Social conditions--1871-1918.