James Madison, Gaillard Hunt, James Brown Scott (1999). “The Debates in the Federal Convention of 1787: Which Framed the Constitution of the United States of America”, p.658, The Lawbook Exchange, Ltd.
James Madison (1840). “The Papers of James Madison: Purchased by Order of the Congress, Being His Correspondence and Reports of Debates During the Congress of the Confederation, and His Reports of Debates in the Federal Convention; Now Published from the Original Manuscripts, Deposited in the Department of State”