Columbia subject headings:
Hadrianeum (Rome, Italy)
Temples, Roman--Conservation and restoration--Italy--Rome.
Harvard subject headings:
Hadrianeum (Rome, Italy)
Rome (Italy)--Buildings, structures, etc.--Conservation and restoration.
Temples, Roman--Italy--Rome--Conservation and restoration.
Princeton subject headings:
Hadrianeum (Rome, Italy)
Temples, Roman--Italy--Rome--Conservation and restoration.