Columbia subject headings:
Terrorism--History--Sources.
Terrorism--Prevention--International cooperation--History--Sources.
Terrorism--Prevention--International cooperation.
Terrorism--Prevention.
Terrorism.
Harvard subject headings:
Terrorism (International law)
Terrorism--History--Sources.
Terrorism--Prevention--International cooperation
Terrorism--Prevention--International cooperation--History--Sources.
Terrorism--Prevention--International cooperation--Treaties.
Terrorism.
Princeton subject headings:
Terrorism--Prevention--Government policy.
Terrorism--Prevention--International cooperation.