| Hard Mazes 68 Complex Maze Problems with a Gradual Progression in Difficulty Level | | | Author:
| Manning, James | | Series title: | Hard Mazes Ser. | | ISBN: | 978-1-78917-659-9 | | Publication Date: | Jul 2018 | | Publisher: | Sketchbook, Sketch Pad, Art Book, Drawing Paper, and Writing Paper Publishing Company, The
| | Book Format: | Paperback | | List Price: | USD $5.99 |
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