{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Mathematical discovery;: On understanding, learning, and teaching problem solving","author_name":"George Polya","thumbnail_url":"https://www.ebooknetworking.net/books/B00/06A/bigB0006AXOTS.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0006AXOTS.html\">Mathematical discovery;: On understanding, learning, and teaching problem solving</a>","width":400,"height":300}