Columbia subject headings:
Architecture, Medieval--Spain--Asturias.
Church architecture--Spain--Asturias.
Harvard subject headings:
Architecture, Medieval--Spain--Asturias.
Church architecture--Spain--Asturias.
Excavations (Archaeology)--Spain--Asturias.
Princeton subject headings:
Architecture, Medieval--Spain--Asturias.
Asturias (Spain)--Buildings, structures, etc.
Church architecture--Spain--Asturias.