Columbia subject headings:
Apartment houses--Spain--Barcelona--History--20th century.
Architecture, Domestic--Spain--Barcelona--History--20th century.
Barcelona (Spain)--Buildings, structures, etc.
Rationalism (Architecture)--Spain--Barcelona.
Working class--Dwellings--Spain--Barcelona--History--20th century.
Harvard subject headings:
Princeton subject headings:
Apartment houses--Spain--Barcelona--History--20th century.
Architecture, Domestic--Spain--Barcelona.
Barcelona (Spain)--Buildings, structures, etc.
Casa Bloc (Barcelona, Spain)
Public housing--Spain--Barcelona.