{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Ruler and the Round: Classic Problems in Geometric Constructions","author_name":"Nicholas D. Kazarinoff","thumbnail_url":"https://www.ebooknetworking.net/books/048/642/big0486425150.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0486425150.html\">Ruler and the Round: Classic Problems in Geometric Constructions</a>","width":400,"height":300}