http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
proceedings of a meeting organized by the World Health Organization as part of the Programme for Vaccine Development, held in Bellagio, Italy, by courtesy of the Rockefeller Foundation, 16-18 April 1985
edited by Rosemary Bell and G. Torrigiani.