Columbia subject headings:
Harvard subject headings:
Detective and mystery stories--History and criticism
Fantasy fiction--History and criticism.
Fiction--20th century--History and criticism
Princeton subject headings:
Detective and mystery stories--History and criticism--Theory, etc.
Fiction--19th century--History and criticism--Theory, etc.
Fiction--20th century--History and criticism--Theory, etc.
Literary form.
Science fiction--History and criticism--Theory, etc.