Columbia subject headings:
Florence (Italy)--History--To 1421--Sources.
Guelfs and Ghibellines--Sources.
Libro del Chiodo.
Harvard subject headings:
Florence (Italy)--History--Sources.
Guelfs and Ghibellines
Princeton subject headings:
Florence (Italy)--History--To 1421--Sources.
Guelfs and Ghibellines--Sources.
Libro del Chiodo.