{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Mathematical Discovery on Understanding, Learning, and Teaching Problem Solving, Volume II","author_name":"George Polya","thumbnail_url":"https://www.ebooknetworking.net/books/487/187/big4871878325.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-4871878325.html\">Mathematical Discovery on Understanding, Learning, and Teaching Problem Solving, Volume II</a>","width":400,"height":300}