Columbia subject headings:
Harvard subject headings:
Carstens, Karl--Biography.
Diplomats--Germany--Biography
Germany--Foreign relations--1945---Sources.
Germany--Politics and government--1945-1990--Sources.
Presidents--Germany--Biography
Princeton subject headings:
Carstens, Karl--Biography.
Diplomats--Germany--Biography.
Germany--Foreign relations--1945---Sources.
Germany--Politics and government--1945-1990--Sources.
Presidents--Germany--Biography.