http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
International health regulations. Spanish
Translation of The international health regulations: a practical guide.
Publicaciones científicas (Washington, D.C.) ; no.322
World Health Organization, 525 23rd St., N.W., Washington, D.C. 20037