Columbia subject headings:
Harvard subject headings:
Ireland--History, Military--Pictorial works.
Ireland--History--20th century--Pictorial works.
Irish Republican Army--History--Pictorial works.
Northern Ireland--History, Military--Pictorial works.
Northern Ireland--History--Pictorial works.
Political violence--Ireland--History--20th century--Pictorial works.
Political violence--Northern Ireland--History--Pictorial works.
Princeton subject headings:
Ireland--History, Military--Pictorial works.
Ireland--History--20th century--Pictorial works.
Irish Republic Army--History--Pictorial works.
Northern Ireland--History, Military--Pictorial works.
Northern Ireland--History--Pictorial works.