Columbia subject headings:
Biographies.
Dulles, Allen, 1893-1969.
Espionage, American--History--20th century.
Intelligence officers--United States--Biography.
Intelligence service--United States--History--20th century.
Kennedy, John F. (John Fitzgerald), 1917-1963--Assassination.
Official secrets--United States.
Spies--United States--Biography.
United States. Central Intelligence Agency--Officials and employees--Biography.
Harvard subject headings:
Biographies.
Dulles, Allen, 1893-1969.
Espionage, American--Soviet Union--History.
Intelligence officers--United States--Biography.
Intelligence service--United States--History--20th century
Kennedy, John F. (John Fitzgerald), 1917-1963
Official secrets--United States.
Spies--United States--Biography.
United States. Central Intelligence Agency--History--20th century.
United States. Central Intelligence Agency--Officials and employees--Biography.
Princeton subject headings:
Dulles, Allen, 1893-1969.
Espionage, American--Soviet Union--History.
Intelligence officers--United States--Biography.
Intelligence service--United States--History--20th century.
Kennedy, John F. (John Fitzgerald), 1917-1963.
Official secrets--United States.
Spies--United States--Biography.
United States. Central Intelligence Agency--History--20th century.
United States. Central Intelligence Agency--Officials and employees--Biography.