http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
a conference arranged by the Royal Photographic Society of Great Britain and the Institution of Mechanical Engineers, 3rd-4th Dec. 1969
Conference on Photography in Engineering (1969 : London)
Royal Photographic Society of Great Britain
Institution of Mechanical Engineers (Great Britain)