http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1 online resource (xxxii, 280 pages) : illustrations.
Includes bibliographical references (pages 277-280) and indexes.
Colección Textos universitarios (ECOE Ediciones)
Área Ecología, medio ambiente y ciencias agrícolas