{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Choice and Chance: An Elementary Treatise on Permutations, Combinations, and Probability, with 640 Exercise","author_name":"William Allen Whitworth","thumbnail_url":"https://www.ebooknetworking.net/books/151/875/big1518754635.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1518754635.html\">Choice and Chance: An Elementary Treatise on Permutations, Combinations, and Probability, with 640 Exercise</a>","width":400,"height":300}