Columbia subject headings:
Bracciolini, Poggio, 1380-1459--Correspondence.
Calligraphers--Italy--Correspondence.
Humanists--Italy--Correspondence.
Niccoli, Niccolò, approximately 1364-1437.
Harvard subject headings:
Bracciolini, Poggio, 1380-1459--Correspondence.
Calligraphers--Italy--Correspondence.
Humanists--Italy--Correspondence
Niccoli, Niccolò, approximately 1364-1437.
Princeton subject headings: