{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Building a System of Tens: Casebook (Developing Mathematical Ideas)","author_name":"DALE SEYMOUR PUBLICATIONS","thumbnail_url":"https://www.ebooknetworking.net/books/076/900/big0769001696.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0769001696.html\">Building a System of Tens: Casebook (Developing Mathematical Ideas)</a>","width":400,"height":300}