Columbia subject headings:
Architecture and society--Spain--Madrid--History--20th century.
Architecture, Domestic--Spain--Madrid--History--20th century.
Madrid (Spain)--Buildings, structures, etc.
Harvard subject headings:
Architecture and society--Spain--Madrid--History--20th century.
Architecture, Domestic--Spain--Madrid--History--20th century.
Madrid (Spain)--Buildings, structures, etc.
Princeton subject headings:
Architecture and society--Spain--Madrid--History--20th century.
Architecture, Domestic--Spain--Madrid--History--20th century.
Madrid (Spain)--Buildings, structures, etc.