Columbia subject headings:
Ireland--Politics and government--1922-
Irish Republican Army--History.
Nationalism--Ireland--History--20th century.
Republicanism--Ireland--History--20th century.
Socialism--Ireland--History--20th century.
Harvard subject headings:
Ireland--Politics and government--1922-
Irish Republican Army--History.
Nationalism--Ireland--History--20th century
Republicanism--Ireland--History--20th century.
Socialism--Ireland--20th century.
Socialism--Ireland--History--20th century.
Princeton subject headings:
Ireland--Politics and government--1922-
Irish Republican Army--History.
Nationalism--Ireland--History--20th century.
Republicanism--Ireland--History--20th century.
Socialism--Ireland--History--20th century.