Columbia subject headings:
Basilica di San Pietro in Vaticano--History.
Church architecture--Vatican City.
Michelangelo Buonarroti, 1475-1564.
Harvard subject headings:
Architects--Italy--Rome.
Basilica di San Pietro in Vaticano--History.
Church architecture--Vatican City.
Michelangelo Buonarroti, 1475-1564.
Princeton subject headings:
Architects--Italy--Rome--16th century.
Basilica di San Pietro in Vaticano--History.
Church architecture--Vatican City.
Michelangelo Buonarroti, 1475-1564.