Columbia subject headings:
Harvard subject headings:
Social problems
Spain--Politics and government--1875-1885.
Spain--Social conditions--1886-1939.
Spain--Social policy.
Spain. Comisión de Reformas Sociales--History.
Princeton subject headings:
Labor laws and legislation--Spain.
Social policy--Spain.
Spain--Social conditions--19th century.
Spain. Comisión de Reformas Sociales--History.