Columbia subject headings:
Architectural drawing--Italy--Cagliari--History.
Architecture--Italy--Cagliari--Designs and plans.
Harvard subject headings:
Architecture--Italy--Cagliari--19th century.
Architecture--Italy--Cagliari--20th century.
Cagliari (Italy)--Buildings, structures, etc.
Princeton subject headings:
Architecture--Italy--Cagliari--19th century.
Architecture--Italy--Cagliari--20th century.