{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Mathematics of Choice: How to Count Without Counting","author_name":"Ivan Morton Niven","thumbnail_url":"https://www.ebooknetworking.net/books/B00/06B/bigB0006BMXUS.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0006BMXUS.html\">Mathematics of Choice: How to Count Without Counting</a>","width":400,"height":300}