{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A collection of examples on the analytical geometry of plane conics; to which are added some examples on sphero-conics. By Ralph A. Roberts.","author_name":"Michigan Historical Reprint Series","thumbnail_url":"https://www.ebooknetworking.net/books/141/818/big1418181005.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1418181005.html\">A collection of examples on the analytical geometry of plane conics; to which are added some examples on sphero-conics. By Ralph A. Roberts.</a>","width":400,"height":300}