http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Internet English: www-based communication activities ( Student's book )
communication, international,english language,internet ( computer network ),world wide web ( information retrieval system )
problems, exercises, etc.,textbooks for foreign speakers,problems, exercises, etc.,problems, exercises, etc