Columbia subject headings:
Historians--Italy--Correspondence.
Mazzatinti, G. (Giuseppe), 1855-1906--Congresses.
Mazzatinti, G. (Giuseppe), 1855-1906--Correspondence.
Philologists--Italy--Correspondence.
Harvard subject headings:
Bibliography--Italy--History--19th century--Congresses.
Mazzatinti, G. (Giuseppe), 1855-1906--Congresses.
Princeton subject headings:
Cataloging of manuscripts--History--Congresses.
Italy--Historiography--Congresses.
Mazzatinti, G. (Giuseppe), 1855-1906--Congresses.