Columbia subject headings:
Harvard subject headings:
Perugia (Italy)--Church history.
Perugia (Italy)--History.
Umbria (Italy)--Church history.
Umbria (Italy)--History.
Princeton subject headings:
Perugia (Italy)--Church history.
Perugia (Italy)--History.
Umbria (Italy)--Church history.
Umbria (Italy)--History.