Columbia subject headings:
Mysticism--Catholic Church--History--Congresses.
Mysticism--Spain--History--Congresses.
Semiotics--Congresses.
Harvard subject headings:
Mysticism--Catholic Church--History--Congresses.
Mysticism--Spain--History--Congresses.
Semiotics--Religious aspects--Catholic Church--Congresses.
Princeton subject headings:
Mysticism--Catholic Church--History--Congresses.
Mysticism--Spain--History--Congresses.
Semiotics--Congresses.