Columbia subject headings:
Metaphysics.
Witkiewicz, Stanisław Ignacy, 1885-1939--Criticism and interpretation.
Witkiewicz, Stanisław Ignacy, 1885-1939.
Harvard subject headings:
Witkiewicz, Stanisław Ignacy, 1885-1939--Criticism and interpretation.
Witkiewicz, Stanisław Ignacy, 1885-1939--Views on metaphysics.
Princeton subject headings:
Witkiewicz, Stanisław Ignacy, 1885-1939--Criticism and interpretation.