For researchers in applied linguistics, pedagogy, and teaching methods, and for their labs. These materials are part of a collection purchased in the UK during the 1990s while I was staying there. They have been kept unused. While modern, new editions are readily available, including PC versions, older, out-of-print editions are difficult to find. I am offering these books, which are over 30 years old, because they can be valuable resources for comparative studies of grammar and vocabulary across different eras. In particular, research on American English from the perspective of British English, such as that from Cambridge University Press, may be difficult to obtain now. The Kenkyusha dictionary alone has a list price of 6500 yen, and would be even more expensive today. - Title: The Oxford Thesaurus - Title: Kenkyusha's New Japanese-English Dictionary - Title: Longman Dictionary of Contemporary English - Title: Cambridge Dictionary of American English Thank you for looking.