Columbia subject headings:
Harvard subject headings:
Grimm, Friedrich Melchior, Freiherr von, 1723-1807. Correspondance littéraire.
Voltaire, 1694-1778--Authorship.
Princeton subject headings:
Grimm, Friedrich Melchior, Freiherr von, 1723-1807. Correspondence littéraire.
Voltaire, 1694-1778--Authorship.
Voltaire, 1694-1778--Bibliography.