Columbia subject headings:
Architecture, Romanesque--Italy--Sardinia.
Architecture--Italy--Sardinia.
Church architecture--Italy--Sardinia.
Harvard subject headings:
Architecture, Medieval--Italy--Sardinia.
Architecture, Romanesque--Italy--Sardinia.
Church architecture--Italy--Sardinia.
Princeton subject headings:
Architecture, Romanesque--Italy--Sardinia.
Architecture--Italy--Sardinia.
Church architecture--Italy--Sardinia.