http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
*Flexible -- the material can be used in any order, depending on students' needs. *Clearly organised -- the Contents list, internal cross-referencing and comprehensive Index helps students select the areas of study required. *Easy to use -- grammatical information is given in short, manageable amounts, immediately followed by practice exercises. *Adaptable -- each item is marked with one, two or three asterisks to indicate the relative level of difficulty. *Authoritative -- for students wishing to investigate as particular point in more depth this book is cross-referenced throughout to the Longman English Grammar. *Enjoyable -- the context exercise in each section is an entertaining story illustrated with a cartoon; grammar practice needn't always be serious