http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
The Mosaic one program consists four texts and a variety of supplemental materials for intermediate to high-intermediate students seeking to improve their English language skills.
English language,English language,Listening
Spoken english,Problems, exercises, etc,Textbooks for foreign speakers,Problems, exercises, etc