- Paperback: 256 pages
- Publisher: Unesco (May 1987)
- Language: English
- ISBN-10: 9231023837
- ISBN-13: 978-9231023835
- Average Customer Review: 5.0 out of 5 stars See all reviews (1 customer review)
- Amazon Best Sellers Rank: #10,286,217 in Books (See Top 100 in Books)
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