Columbia subject headings:
Architecture--Spain--History--20th century.
School buildings--Spain--History--20th century.
Working class--Education--Spain--History--20th century.
Harvard subject headings:
College buildings--Spain--Galicia.
College buildings--Spain--History--20th century.
Modern movement (Architecture)--Spain--History--20th century.
Universidades Laborales--Spain--Galicia.
Working class--Education--Spain--History--20th century.
Princeton subject headings:
College buildings--Spain--History--20th century.
Modern movement (Architecture)--Spain--History--20th century.
Working class--Education--Spain--History--20th century.