Columbia subject headings:
Social reformers--Spain.
Spain--Bio-bibliography.
Spain--History--Civil War, 1936-1939--Historiography.
Spain--Social conditions.
Harvard subject headings:
Social reformers--Spain.
Spain--Bio-bibliography.
Spain--History--Civil War, 1936-1939--Historiography.
Spain--Social conditions.
Princeton subject headings:
Social reformers--Spain.
Spain--Bio-bibliography.
Spain--History--Civil War, 1936-1939--Historiography.
Spain--Social conditions--1886-1939.