Columbia subject headings:
Harvard subject headings:
Catholic Church--Spain--País Vasco--Clergy--History--20th century.
Catholic Church--Spain--País Vasco--History--20th century.
País Vasco (Spain)--Church history--20th century.
Princeton subject headings:
Catholic Church--Spain--País Vasco--Clergy--History--20th century.
Catholic Church--Spain--País Vasco--Political activity--History--20th century.
Church and state--Spain--History--20th century.
Government, Resistance to--Religious aspects--Christianity.
Government, Resistance to--Spain--País Vasco--History--20th century.
Nationalism--Religious aspects--Catholic Church.
Nationalism--Spain--País Vasco--History--20th century.
País Vasco (Spain)--Church history--20th century--Sources.
País Vasco (Spain)--Church history--20th century.
País Vasco (Spain)--Politics and government--20th century.
Persecution--Spain--País Vasco--History--20th century.