http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
The book is a comprehensive three-level course, designed to improve student’s competence in English and broaden their horizons. Each level consists of a student’s book, a workbook, a teacher’s book and a cassette. This book approaches the four skills of listening, speaking, reading and writing in an integrated and balanced manner