Columbia subject headings:
Northern Ireland--Politics and government--1968-1998.
Northern Ireland--Politics and government--1998-
Provisional IRA--History.
Sinn Fein--History.
Terrorism--Northern Ireland.
Violence--Northern Ireland.
Harvard subject headings:
Irish Republican Army--History.
Northern Ireland--History, Military.
Northern Ireland--Politics and government--1968-1998.
Northern Ireland--Politics and government--1998-.
Provisional IRA--History.
Sinn Fein--History.
Terrorism--Northern Ireland
Violence--Ireland--History--20th century.
Violence--Northern Ireland--History.
Princeton subject headings:
Northern Ireland--Politics and government--1968-1998.
Northern Ireland--Politics and government--1998-
Provisional IRA--History.
Sinn Fein--History.
Terrorism--Northern Ireland.
Violence--Northern Ireland.