Gottfried Wilhelm Leibniz (1916). “New Essays Concerning Human Understanding with an Appealing...: Transtated from the Original Latin, French and German Writeen”
Abraham Lincoln, Stephen Arnold Douglas, Rodney O. Davis, Douglas Lawson Wilson (2008). “The Lincoln-Douglas Debates”, p.105, University of Illinois Press
United States. Department of the Treasury, Alexander Hamilton (1828). “Reports of the Secretary of the Treasury of the United States, Prepared in Obedience to the Act of the 10th May, 1800: ... to which are Prefixed, the Reports of Alexander Hamilton, on Public Credit, on a National Bank, on Manufactures, and on the Establishment of a Mint ... Printed by Order of the Senate of the United States”, p.4