Columbia subject headings:
Art, Modern--20th century.
Art, Spanish--20th century.
Museo Nacional Centro de Arte Reina Sofía.
Harvard subject headings:
Art, Modern--20th century
Art, Spanish--20th century.
Museo Nacional Centro de Arte Reina Sofía.
Princeton subject headings:
Art, Modern--20th century.
Art--Spain--Madrid.
Museo Nacional Centro de Arte Reina Sofía.