Columbia subject headings:
Harvard subject headings:
Germany--History--20th century.
Germany--History--21st century.
Germany--Relations--United States.
United States--History--20th century.
United States--History--21st century.
United States--Relations--Germany.
Princeton subject headings:
Germany--History--20th century.
Germany--History--21st century.
Germany--Relations--United States.
United States--History--20th century.
United States--History--21st century.
United States--Relations--Germany.