B. L. Rayner, Thomas Jefferson (1834). “Life of Thomas Jefferson: with selections from the most valuable portions of his voluminious and unrivalled private correspondence : with portrait”, p.236
Thomas Jefferson (1854). “The Writings of Thomas Jefferson: Being His Autobiography, Correspondence, Reports, Messages, Addresses, and Other Writings, Official and Private : Published by the Order of the Joint Committee of Congress on the Library, from the Original Manuscripts, Deposited in the Department of State”, p.496
Thomas Jefferson (2010). “The Works of Thomas Jefferson: Correspondence 1771 - 1779, the Summary View, and the Declaration of Independence”, p.119, Cosimo, Inc.