Columbia subject headings:
Bolsena (Italy)--Church history.
Duomo di Orvieto (Orvieto, Italy)--History.
Lord's Supper--Miracles.
Orvieto (Italy)--Church history.
Harvard subject headings:
Bolsena (Italy)--Church history.
Duomo di Orvieto (Orvieto, Italy)--History.
Lord's Supper--Miracles
Orvieto (Italy)--Church history.
Princeton subject headings:
Bolsena (Italy)--Church history.
Duomo di Orvieto (Orvieto, Italy)--History.
Lord's Supper--Miracles.
Orvieto (Italy)--Church history.