Cite web page as: Monticello: garden temple, recto, undated, by Thomas Jefferson. N63; K36 [electronic edition].
Thomas Jefferson Papers: An Electronic Archive. Boston, Mass. : Massachusetts Historical Society, 2003. http://www.thomasjeffersonpapers.org/
Original manuscript: Jefferson, Thomas. Monticello: garden temple, 1 sheet, 2 pages, undated. N63; K36. Dimensions: 16.8 cm x 18.4 cm (6-5/8" x 7-1/4"). Original manuscript from the Coolidge Collection of Thomas Jefferson Manuscripts, Massachusetts Historical Society. Jefferson's copy of this octagonal building from a plate in James Gibb's Book of Architecture also includes, on the reverse, calculations based on the form.