1Thomas Jefferson to Wells & Lilly, 3 January 1818 (Jefferson Papers)
Cicero; Clavis Ciceronis; sive indices rerum et verborum (ed. J. A. Ernesti) [index entry]
2Wells & Lilly to Thomas Jefferson, 13 January 1818 (Jefferson Papers)
Cicero; Clavis Ciceronis; sive indices rerum et verborum (ed. J. A. Ernesti) [index entry]
3Enclosure: Thomas Jefferson’s Account with Wells & Lilly, 13 January 1818 (Jefferson Papers)
Cicero; Clavis Ciceronis; sive indices rerum et verborum (ed. J. A. Ernesti) [index entry]