Columbia subject headings:
Carnegie libraries--Ireland--History.
Library architecture--Ireland--History--19th century.
Library architecture--Ireland--History--20th century.
Public libraries--Ireland--History--19th century.
Public libraries--Ireland--History--20th century.
Harvard subject headings:
Carnegie libraries--Ireland--History.
Carnegie libraries--Northern Ireland--History.
Library architecture--Ireland--History--19th century.
Library architecture--Ireland--History--20th century.
Library buildings--Ireland--History.
Library buildings--Northern Ireland--History.
Public libraries--Ireland--History--19th century.
Public libraries--Ireland--History--20th century.
Princeton subject headings:
Carnegie libraries--Ireland--History.
Library buildings--Ireland--History.