Columbia subject headings:
Christianity in literature.
Religion and science.
Science fiction, American--History and criticism.
Science fiction, English--History and criticism.
Harvard subject headings:
Christianity in literature.
Religion and science.
Science fiction, American--History and criticism.
Science fiction, English--History and criticism.
Princeton subject headings:
Christianity in literature.
Religion and science.
Science fiction, American--History and criticism.
Science fiction, English--History and criticism.