Columbia subject headings:
Petrarca, Francesco, 1304-1374--Criticism and interpretation.
Petrarca, Francesco, 1304-1374--Political and social views.
Petrarca, Francesco, 1304-1374. Sine nomine.
Harvard subject headings:
Petrarca, Francesco, 1304-1374--Criticism and interpretation.
Petrarca, Francesco, 1304-1374--Political and social views.
Petrarca, Francesco, 1304-1374. Sine nomine.
Princeton subject headings:
Petrarca, Francesco, 1304-1374--Criticism and interpretation.
Petrarca, Francesco, 1304-1374--Political and social views.
Petrarca, Francesco, 1304-1374. Sine nomine.