Columbia subject headings:
Art--Rome.
Emperors--Rome.
Paul, the Apostle, Saint.
Peter, the Apostle, Saint.
Rome (Italy)--Description and travel.
Harvard subject headings:
Art--Rome.
Emperors--Rome
Paul, the Apostle, Saint
Peter, the Apostle, Saint
Rome (Italy)--Description and travel
Princeton subject headings:
Art--Rome.
Emperors--Rome.
Paul, the Apostle, Saint
Peter, the Apostle, Saint
Rome (Italy)--Description and travel.