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Overview
Contains more than 200 puzzles and mental challenges specially designed to improve memory, concentration, logic skills and powers of observation.
| ISBN-13 | 9780276445781 |
|---|---|
| ISBN-10 | 0276445783 |
| Format | Paperback |
|---|---|
| Pages | 192 pages |
| Publisher | Readers Digest |
| Published On | 2010-03-26 |
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