Columbia subject headings:
Architectural models--Italy--Rome.
Basilica di San Pietro in Vaticano.
Sangallo, Antonio da, 1484-1546--Criticism and interpretation.
Harvard subject headings:
Architectural models--Italy--Rome.
Architecture, Renaissance--Italy--Rome.
Basilica di San Pietro in Vaticano.
Sangallo, Antonio da, 1484-1546
Princeton subject headings:
Architectural models--Italy--Rome.
Basilica di San Pietro in Vaticano.
Sangallo, Antonio da, 1484-1546.