111Destutt de Tracy to Thomas Jefferson, 24 November 1820 (Jefferson Papers)
Destutt de Tracy, Antoine Louis Claude; A Treatise on Political Economy [index entry]
112Joseph Milligan to Thomas Jefferson, 27 November 1820 (Jefferson Papers)
Destutt de Tracy, Antoine Louis Claude; A Treatise on Political Economy [index entry]
113Thomas Jefferson to Destutt de Tracy, 26 December 1820 (Jefferson Papers)
Destutt de Tracy, Antoine Louis Claude; A Treatise on Political Economy [index entry]
114Destutt de Tracy to Thomas Jefferson, 22 February 1821 (Jefferson Papers)
Destutt de Tracy, Antoine Louis Claude; A Treatise on Political Economy [index entry]