Cite web page as: Richmond: Hall of Justice (plan), verso, [probably summer 1780], by Thomas Jefferson. N287; K106 [electronic edition].
Thomas Jefferson Papers: An Electronic Archive. Boston, Mass. : Massachusetts Historical Society, 2003. http://www.thomasjeffersonpapers.org/
Original manuscript: Jefferson, Thomas. Richmond: Hall of Justice (plan), 1 sheet, 2 pages, [probably summer 1780]. N287; K106. Dimensions: 10.2 cm x 7.8 cm (4" x 3-1/16"). Original manuscript from the Coolidge Collection of Thomas Jefferson Manuscripts, Massachusetts Historical Society.