Columbia subject headings:
Giotto, 1266?-1337--Catalogs.
Giotto, 1266?-1337--Criticism and interpretation.
Harvard subject headings:
Giotto, 1266?-1337--Catalogs.
Giotto, 1266?-1337--Criticism and interpretation.
Princeton subject headings:
Giotto, 1266?-1337--Catalogs.
Giotto, 1266?-1337--Criticism and interpretation.