Columbia subject headings:
Petrarca, Francesco, 1304-1374--Versification.
Petrarca, Francesco, 1304-1374. Rime.
Harvard subject headings:
Petrarca, Francesco, 1304-1374--Versification.
Petrarca, Francesco, 1304-1374. Rime
Princeton subject headings:
Petrarca, Francesco, 1304-1374--Versification.
Petrarca, Francesco, 1304-1374. Rime.