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.690, The Lawbook Exchange, Ltd.
John Adams (1794). “A Defence of the Constitutions of Government of the United States of America: Against the Attack of M. Turgot in His Letter to Dr. Price, Dated the Twenty-second Day of March, 1778”, p.475
"The Right to Keep and Bear Arms - Report of the Subcommittee on the Constitution of the Committee on the Judiciary". Book by Dennis DeConcini and Orrin Hatch, February 1982.
Thomas Jefferson, Alexander Hamilton, John Jay, James Madison (2018). “America's Founding Documents: The Declaration of Independence, the Articles of Confederation, the United States Constitution, the Federalist Papers, and the Bill of Rights”, p.199, First Avenue Editions