Columbia subject headings:
Dystopias.
Utopias in literature.
Utopias--Political aspects.
Utopias.
Harvard subject headings:
Dystopias
Utopias
Utopias in literature.
Utopias--Political aspects.
Princeton subject headings:
Dystopias.
Utopias in literature.
Utopias--Political aspects.
Utopias.