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.
Joseph Story (1865). “A Familiar Exposition of the Constitution of the United States: Containing a Brief Commentary on Every Clause, Explaining the True Nature, Reasons, and Objects Thereof; Designed for the Use of School Libraries and General Readers”, p.264
Noah Webster (1787). “An Examination Into the Leading Principles of the Federal Constitution Proposed by the Late Convention Held at Philadelphia: With Answers to the Principal Objections that Have Been Raised Against the System”, p.43
William Blackstone, St. George Tucker (1996). “Blackstone's Commentaries: With Notes of Reference to the Constitution and Laws, of the Federal Government of the United States, and of the Commonwealth of Virginia: With an Appendix to Each Volume, Containing Short Tracts Upon Such Subjects as Appeared Necessary to Form a Connecte”, p.300, The Lawbook Exchange, Ltd.