Columbia subject headings:
Abbey Theatre--History.
O'Casey, Sean, 1880-1964. Plough and the stars.
Riots--Ireland--Dublin.
Theater--Ireland--Dublin--History--20th century.
Harvard subject headings:
Abbey Theatre--History.
Dublin (Ireland)--History.
O'Casey, Sean, 1880-1964. Plough and the stars.
Theater--Ireland--Dublin--History--20th century.
Princeton subject headings:
Abbey Theatre--History.
O'Casey, Sean, 1880-1964. Plough and the stars.
Riots--Ireland--Dublin.
Theater--Ireland--Dublin--History--20th century.