{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The abacus: For overhead projection (Mathematics packet)","author_name":"K. C Heggem","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0007HY0C0.html\">The abacus: For overhead projection (Mathematics packet)</a>","width":400,"height":300}