http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
edited by David Abulafia ; texts by David Abulafia, Oliver Rackham, Marlenne Suano, Mario Torelli, Geofrey Rickman, John Pryor, Michel Balard, Molly Greene, Jeremy Black.