http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
description and use of a new instrument called, an architectonic sector
By which any part of architecture may be drawn with facility and exactness
1 online resource (2 unnumbered pages, 82 pages, XXV plates)
Also issued as part of 'The perspective of architecture', London, 1761.
Reproduction of original from British Library.