Columbia subject headings:
Ambassadors--United States--Biography.
Bullitt, William C. (William Christian), 1891-1967.
United States--Foreign relations--20th century.
Harvard subject headings:
Ambassadors--United States--Biography
Bullitt, William C. (William Christian), 1891-1967.
United States--Foreign relations--20th century.
Princeton subject headings:
Ambassadors--United States--Biography.
Bullitt, William C. (William Christian), 1891-1967.
United States--Foreign relations--20th century.