Columbia subject headings:
Ambassadors--United States--Biography.
Historians--United States--Biography.
Kennan, George F. (George Frost), 1904-2005.
United States--Foreign relations--20th century.
Harvard subject headings:
Ambassadors--United States--Biography
Historians--United States--Biography
Kennan, George F. (George Frost), 1904-2005
United States--Foreign relations--20th century.
Princeton subject headings:
Ambassadors--United States--Biography.
Historians--United States--Biography.
Kennan, George F. (George Frost), 1904-2005.
United States--Foreign relations--20th century.