Title: Probably not the same book!
Product review: There appear to be two different versions of this book, one of which is very cheap ($25) and the other of which is very expensive (used from $90-250). I am guessing from the research I've done that one may be a lengthy teacher's guide and one a much shortened student version. There also appear to be two editions, one in 1995 and one in 2001. All editions and versions appear to share the same ISBN, however, which seems odd and unlikely. Be sure you are getting what you actually want, if you can tell!
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