{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The Cryptoclub: Using Mathematics to Make and Break Secret Codes","author_name":"Janet Beissinger, Vera Pless","thumbnail_url":"https://www.ebooknetworking.net/books/156/881/big156881223X.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-156881223X.html\">The Cryptoclub: Using Mathematics to Make and Break Secret Codes</a>","width":400,"height":300}