Cite web page as: [Monticello]: building notes, verso, undated, by Thomas Jefferson. MHi22 [electronic edition].
Thomas Jefferson Papers: An Electronic Archive. Boston, Mass. : Massachusetts Historical Society, 2003. http://www.thomasjeffersonpapers.org/
Original manuscript: Jefferson, Thomas. [Monticello]: building notes, 1 sheet, 2 pages undated. MHi22. Dimensions: 16.7 cm x 8.6 cm (6-9/16" x 3-3/8"). Original manuscript from the Coolidge Collection of Thomas Jefferson Manuscripts, Massachusetts Historical Society.