http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Longman dictionary of contemporary english
Longman Dictionary of Contemporary English is a comprehensive learner's dictionary designed for intermediate to advanced English users. It provides clear definitions using a limited defining vocabulary, real-life example sentences, collocations, grammar notes, and usage tips. The dictionary is especially useful for improving vocabulary, writing, and speaking skills in academic and everyday contexts.