Columbia subject headings:
Painting, Gothic--Spain--Congresses.
Painting, Spanish--Congresses.
Painting--Technique--Congresses.
Harvard subject headings:
Art--Economic aspects--Congresses.
Painting, Gothic--Spain--Congresses.
Painting, Spanish--Congresses.
Painting--Study and teaching--Spain--History--Congresses.
Princeton subject headings:
Painting, Gothic--Spain--Congresses.
Painting, Spanish--Congresses.
Painting--Technique--Congresses.