Columbia subject headings:
Political violence--Spain--Valladolid (Province)--History--20th century.
Valladolid (Spain : Province)--Politics and government--20th century.
Valladolid (Spain : Province)--Social conditions--20th century.
Harvard subject headings:
Valladolid (Spain : Province)--History--20th century.
Valladolid (Spain : Province)--Politics and government--20th century.
Princeton subject headings:
Political violence--Spain--Valladolid (Province)--History--20th century.
Valladolid (Spain : Province)--Politics and government--20th century.
Valladolid (Spain : Province)--Social conditions--20th century.