Columbia subject headings:
Authors, Italian--To 1500--Correspondence.
Authors, Latin (Medieval and modern)--Italy--Correspondence.
Humanists--Italy--Correspondence.
Petrarca, Francesco, 1304-1374--Correspondence.
Harvard subject headings:
Authors, Italian--To 1500--Correspondence
Authors, Latin (Medieval and modern)--Italy--Correspondence.
Humanists--Italy--Correspondence
Petrarca, Francesco, 1304-1374. Correspondence
Princeton subject headings: