Columbia subject headings:
Harvard subject headings:
Architecture, Romanesque--Spain--Castilla y León--Encyclopedias.
Architecture--Spain--Castilla y León--Encyclopedias.
Art, Romanesque--Spain--Castilla y León--Encyclopedias.
Art, Spanish--Spain--Castilla y León--Encyclopedias.
Christian art and symbolism--Spain--Castilla y León--Encyclopedias.
Church architecture--Spain--Castilla y León--Encyclopedias.
Decoration and ornament, Architectural--Spain--Castilla y León--Encyclopedias.
Princeton subject headings:
Architecture, Romanesque--Spain--Castilla y León.
Architecture, Spanish--Spain--Castilla y León.
Art, Romanesque--Spain--Castilla y León.
Art, Spanish--Spain--Castilla y León.
Castilla y León (Spain)--History.
Christian art and symbolism--Spain--Castilla y León.
Church architecture--Spain--Castilla y León.