Columbia subject headings:
Literature, Medieval--History and criticism--Congresses.
Water in literature--Congresses.
Water use--History--Congresses.
Harvard subject headings:
Literature, Medieval--History and criticism--Congresses
Water in literature--Congresses.
Water use--History--Congresses.
Princeton subject headings:
Literature, Medieval--History and criticism--Congresses.
Water in literature--Congresses.
Water use--History--Congresses.