Columbia subject headings:
Harvard subject headings:
Corniani, Giovanni Battista, conte, 1742-1813--Correspondence.
Lombardy (Italy)--History--Austrian rule, 1714-1796--Sources.
Milan (Italy)--History--1535-1859--Sources.
Necchi Aquila, Giuseppe de, 1754-1800--Correspondence.
Princeton subject headings:
Corniani, Giovanni Battista, 1742-1813--Correspondence.
Milan (Italy)--History--1535-1859--Sources.
Necchi Aquila, Giuseppe de, 1754-1800--Correspondence.