{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Knots and Borromean Rings, Rep-Tiles, and Eight Queens: Martin Gardner's Unexpected Hanging (The New Martin Gardner Mathematical Library)","author_name":"Martin Gardner","thumbnail_url":"https://www.ebooknetworking.net/books/052/175/big0521758718.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0521758718.html\">Knots and Borromean Rings, Rep-Tiles, and Eight Queens: Martin Gardner&#039;s Unexpected Hanging (The New Martin Gardner Mathematical Library)</a>","width":400,"height":300}