http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
"Prepared under the direction of the chief of engineers, U.S. Army ... Compiled from base map of Ville d'Agadir, 1:10,000, Office of the military attache, Tangier, Morocco. Revised from U.S.H.O. chart number 2239, R.A.F. aerial photos ... and Morocco, town plan of Agadir, G.S.G.S. number 4241, 1942."