Columbia subject headings:
Pirandello, Luigi, 1867-1936--Knowledge--Germany--Congresses.
Harvard subject headings:
Pirandello, Luigi, 1867-1936--Knowledge--Germany--Congresses.
Princeton subject headings:
German drama--History and criticism.
German literature--History and criticism.
Pirandello, Luigi, 1867-1936--Criticism and interpretation.
Pirandello, Luigi, 1867-1936--Influence.