Columbia subject headings:
Harvard subject headings:
Expressionism
O'Casey, Sean, 1880-1964--Criticism and interpretation.
O'Casey, Sean, 1880-1964--Stage history.
Princeton subject headings:
Expressionism in literature.
Ireland--In literature.
O'Casey, Sean, 1880-1964--Criticism and interpretation.
O'Casey, Sean, 1880-1964--Stage history.