Columbia subject headings:
Lem, Stanisław--Criticism and interpretation.
Science fiction, Polish--History and criticism.
Science in literature.
Science--Philosophy.
Technology in literature.
Technology--Philosophy.
Harvard subject headings:
Lem, Stanisław--Criticism and interpretation.
Science fiction, Polish--History and criticism.
Science in literature.
Science--Philosophy
Technology in literature.
Technology--Philosophy
Princeton subject headings:
Lem, Stanisław--Criticism and interpretation--Congresses.
Science fiction, Polish--Congresses.
Science--Philosophy--Congresses.
Technology--Philosophy--Congresses.