Columbia subject headings:
City planning--Spain--Madrid.
City planning--Spain.
Madrid (Spain)--Economic conditions.
Madrid (Spain)--Social conditions.
Harvard subject headings:
City planning--Spain
City planning--Spain--Madrid
Madrid (Spain)--Economic conditions.
Madrid (Spain)--Social conditions.
Princeton subject headings:
City planning--Spain--Madrid.
Madrid (Spain)--Economic conditions.
Madrid (Spain)--Social conditions.