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The author, Gary Cochran, provides a comprehensive guide to the subject matter in a set of 6 cassette tapes and 2 books. The publication year of the set is 1989 and it is in English language. The educational level is adult and further education.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.