Columbia subject headings:
Painting, Italian.
Painting, Medieval--Italy.
Painting--Vatican City--Catalogs.
Pinacoteca vaticana--Catalogs.
Harvard subject headings:
Giotto, 1266?-1337.
Painting, Italian--Catalogs
Painting, Medieval--Italy--Catalogs.
Pinacoteca vaticana--Catalogs.
Princeton subject headings:
Catalogs.
Painting, Italian--Catalogs.
Painting, Medieval--Italy--Catalogs.
Pinacoteca vaticana--Catalogs.