Columbia subject headings:
Marble sculpture, Renaissance--Conservation and restoration--Vatican City.
Michelangelo Buonarroti, 1475-1564. Pietà.
Harvard subject headings:
Basilica di San Pietro in Vaticano.
Michelangelo Buonarroti, 1475-1564. Pietà.
Sculpture, Italian--Conservation and restoration--Vatican City.
Sculpture, Renaissance--Conservation and restoration--Vatican City.
Princeton subject headings:
Basilica di San Pietro in Vaticano.
Michelangelo Buonarroti, 1475-1564. Pietà.
Sculpture, Italian--Conservation and restoration--Vatican City.
Sculpture, Renaissance--Conservation and restoration--Vatican City.