http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
6 volúmenes : ilustraciones color ; 22 cm.
Editor general Kenton Suherland ; revisor Elizabeth Bellavance; ilustraciones Bill Ogden ; Anco.
includes key sentences, english sounds, english words index and grammar index