Columbia subject headings:
Asturias (Spain)--Antiquities.
Petroglyphs--Spain--Asturias.
Rock paintings--Spain--Asturias.
Harvard subject headings:
Asturias (Spain)--Antiquities.
Paleolithic period--Spain--Asturias.
Petroglyphs--Spain--Asturias.
Rock paintings--Spain--Asturias.
Princeton subject headings: