Columbia subject headings:
Bin Laden, Osama, 1957-2011.
Islamic fundamentalism--Political aspects.
September 11 Terrorist Attacks, 2001.
Terrorism--Religious aspects--Islam.
Harvard subject headings:
Bin Laden, Osama, 1957-2011.
Islamic fundamentalism--Political aspects.
September 11 Terrorist Attacks, 2001
Terrorism--Religious aspects--Islam
Princeton subject headings:
Bin Laden, Osama, 1957-2011.
Islamic fundamentalism--Political aspects.
September 11 Terrorist Attacks, 2001.
Terrorism--Religious aspects--Islam.