Columbia subject headings:
Conflict management--Northern Ireland.
Northern Ireland--History.
Northern Ireland--Politics and government--1968-1998.
Northern Ireland--Politics and government--1998-
Harvard subject headings:
Conflict management--Northern Ireland.
Northern Ireland--History.
Northern Ireland--Politics and government--1968-1998.
Northern Ireland--Politics and government--1998-.
Princeton subject headings:
Northern Ireland--History.