Columbia subject headings:
Castilla y León (Spain)--History.
Christians--Spain--Castilla y León--History.
Muslims--Spain--Castilla y León--History.
Spain--Civilization--711-1516.
Harvard subject headings:
Arabs--Spain--Castilla y León--History.
Castilla y León (Spain)--History.
Christians--Spain--Castilla y León--History.
Muslims--Spain--Castilla y León--History.
Spain--History--711-1516.
Princeton subject headings:
Castilla y León (Spain)--History.
Christians--Spain--Castilla y León--History.
Muslims--Spain--Castilla y León--History.
Spain--Civilization--711-1516.