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32 pages • first pub 1980 (editions)
ISBN/UID: None
Format: Not specified
Language: English
Publisher: Not specified
Publication date: Not specified
challenging
mysterious
reflective
medium-paced
Description
-- Puzzle books full of thought provoking problems and brain teasers-- Clues at the end of each book help with the more difficult problems
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32 pages • first pub 1980 (editions)
ISBN/UID: None
Format: Not specified
Language: English
Publisher: Not specified
Publication date: Not specified
challenging
mysterious
reflective
medium-paced
Description
-- Puzzle books full of thought provoking problems and brain teasers-- Clues at the end of each book help with the more difficult problems