John Adams, Abigail Adams, Thomas Jefferson (1971). “The Adams-Jefferson letters: the complete correspondence between Thomas Jefferson and Abigail and John Adams”, Touchstone
John Adams, Charles Francis Adams (1856). “The Works of John Adams, Second President of the United States: With a Life of the Author, Notes and Illustrations”, p.85
John Adams, Abigail Adams, Thomas Jefferson (1971). “The Adams-Jefferson letters: the complete correspondence between Thomas Jefferson and Abigail and John Adams”, Touchstone
John Adams, Charles Francis Adams (1856). “The Works of John Adams, Second President of the United States: With a Life of the Author, Notes and Illustrations”, p.66