Columbia subject headings:
Leopardi, Giacomo, 1798-1837--Autographs.
Leopardi, Giacomo, 1798-1837--Criticism and interpretation.
Leopardi, Giacomo, 1798-1837. Correspondence.
Harvard subject headings:
Leopardi, Giacomo, 1798-1837--Autographs.
Leopardi, Giacomo, 1798-1837--Criticism and interpretation.
Leopardi, Giacomo, 1798-1837. Correspondence.
Princeton subject headings:
Leopardi, Giacomo, 1798-1837--Criticism and interpretation.