Columbia subject headings:
Floods--Italy--Florence--History--To 1500.
Giotto, 1266?-1337.
Painting, Gothic--Italy--Florence.
Painting, Italian--Italy--Florence.
Harvard subject headings:
Artists' tools--Italy--Florence.
Floods--Italy--Florence
Florence (Italy)--History--To 1421
Giotto school of painting.
Giotto, 1266?-1337--Criticism and interpretation.
Painting--Technique
Princeton subject headings:
Floods--Italy--Florence--History--To 1500.
Giotto, 1266?-1337.
Painting, Gothic--Italy--Florence.
Painting, Italian--Italy--Florence.