Columbia subject headings:
Painting, Spanish--17th century.
Painting, Spanish--Technique.
Painting--Technique.
Harvard subject headings:
Painting, Modern--17th century--Spain.
Painting, Modern--18th century--Spain.
Painting, Spanish--Technique.
Painting--Technique
Princeton subject headings:
Painting, Modern--17th century--Spain.
Painting, Modern--18th century.
Painting, Spanish--Technique.
Painting--Technique.