Columbia subject headings:
Harvard subject headings:
Housing policy--France--Paris Metropolitan Area.
Housing policy--Spain--Madrid Metropolitan Area.
Madrid Metropolitan Area (Spain)--Social policy.
Paris Metropolitan Area (France)--Social policy.
Squatter settlements--Government policy--France--Paris Metropolitan Area.
Squatter settlements--Government policy--Spain--Madrid Metropolitan Area.
Princeton subject headings:
Housing policy--France--Paris Metropolitan Area.
Housing policy--Spain--Madrid Metropolitan Area.
Madrid Metropolitan Area (Spain)--Social policy.
Paris Metropolitan Area (France)--Social policy.
Squatter settlements--France.
Squatter settlements--Spain.