Columbia subject headings:
Harvard subject headings:
Spain--Economic conditions--20th century.
Spain--Social conditions--20th century.
Women employees--Spain--History--20th century.
Princeton subject headings:
Sociology, Urban--Spain--History--20th century.
Spain--Economic conditions--20th century.
Spain--History--20th century.
Spain--Social conditions--20th century.
Women employees--Spain--History--20th century.