Columbia subject headings:
Ağca, Mehmet Ali.
John Paul II, Pope, 1920-2005--Assassination attempt, 1981.
Mafia.
Harvard subject headings:
Ağca, Mehmet Ali.
John Paul II, Pope, 1920-2005--Assassination attempt, 1981.
Mafia.
Terrorism.
Princeton subject headings:
Ağca, Mehmet Ali.
John Paul II, Pope, 1920-2005--Assassination attempt, 1981.
Mafia.