{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Mathematical Discovery: On Understanding, Learning and Teaching Problem Solving  Combined Edition","author_name":"George Polya","thumbnail_url":"https://www.ebooknetworking.net/books/047/108/big0471089753.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0471089753.html\">Mathematical Discovery: On Understanding, Learning and Teaching Problem Solving  Combined Edition</a>","width":400,"height":300}