This primary source comes from the Records of the Continental and Confederation Congresses and the Constitutional Convention.
National Archives Identifier: 44176956
Full Citation: Alexander Hamilton’s Plan of Government; 6/18/1787; Papers of David Brearley; Official Records of the Constitutional Convention of 1787, 1785 - 1787; Records of the Continental and Confederation Congresses and the Constitutional Convention, Record Group 360; National Archives Building, Washington, DC.