Columbia subject headings:
Harvard subject headings:
Fantastic, The, in literature--Congresses.
Fantasy fiction--History and criticism--Congresses.
Literature and society--Europe--Congresses.
Science fiction--History and criticism--Congresses
Princeton subject headings:
Fantastic, The, in literature--Congresses.
Fantasy fiction--History and criticism--Congresses.
Literature and society--Europe--Congresses.
Science fiction--History and criticism--Congresses.