Columbia subject headings:
Canadian poetry--20th century--History and criticism.
Literary form.
Literature--History and criticism--Theory, etc.
Harvard subject headings:
Canadian poetry--20th century--History and criticism
Epic poetry--History and criticism--Theory, etc.
Literary form--History--20th century
Literary form.
Princeton subject headings:
Canadian poetry--20th century--History and criticism.
Literary form.
Literature--History and criticism--Theory, etc.