{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Hexaflexagons, Probability Paradoxes, and the Tower of Hanoi: Martin Gardner's First Book of Mathematical Puzzles and Games (The New Martin Gardner Mathematical Library)","author_name":"Martin Gardner","thumbnail_url":"https://www.ebooknetworking.net/books/052/173/big0521735254.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0521735254.html\">Hexaflexagons, Probability Paradoxes, and the Tower of Hanoi: Martin Gardner&#039;s First Book of Mathematical Puzzles and Games (The New Martin Gardner Mathematical Library)</a>","width":400,"height":300}