{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Mathematics in Fun and in Earnest","author_name":"Nathan Altshiller-Court","thumbnail_url":"https://www.ebooknetworking.net/books/048/644/big0486449688.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0486449688.html\">Mathematics in Fun and in Earnest</a>","width":400,"height":300}