{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A Treatise on the Differential Geometry of Curves and Surfaces (Classic Reprint)","author_name":"Luther Pfahler Eisenhart","thumbnail_url":"https://www.ebooknetworking.net/books/145/100/big1451004672.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1451004672.html\">A Treatise on the Differential Geometry of Curves and Surfaces (Classic Reprint)</a>","width":400,"height":300}