{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A Geometrical Treatise On Conic Sections: With Numerous Examples for the Use of Schools and Students in the Universities : With an Appendix On Harmonic Ratio, Poles and Polars, and Reciprocation","author_name":"William Henry Drew","thumbnail_url":"https://www.ebooknetworking.net/books/114/571/big1145712347.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1145712347.html\">A Geometrical Treatise On Conic Sections: With Numerous Examples for the Use of Schools and Students in the Universities : With an Appendix On Harmonic Ratio, Poles and Polars, and Reciprocation</a>","width":400,"height":300}