Columbia subject headings:
Harvard subject headings:
Conference on Security and Cooperation in Europe (1972 : Helsinki, Finland). Final Act.
John Paul II, Pope, 1920-2005--Assassination attempt, 1981.
Terrorism--Bulgaria.
Princeton subject headings:
Assassination--Italy.
Catholic Church. Pope (1978-2005 : John Paul II)
John Paul II, Pope, 1920-2005.
Offenses against the person--Italy.