Cite web page as: Philadelphia: house (plan), [1793], by Thomas Jefferson. N251; K120 [electronic edition]. Thomas Jefferson Papers: An Electronic Archive. Boston, Mass. : Massachusetts Historical Society, 2003. http://www.thomasjeffersonpapers.org/

Original manuscript: Jefferson, Thomas. Philadelphia: house (plan), 1 sheet, 2 pages, [1793]. N251; K120. Dimensions: 18.4 cm x 14.3 cm (7-1/4" x 5-5/8"). Original manuscript from the Coolidge Collection of Thomas Jefferson Manuscripts, Massachusetts Historical Society.