{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"A Treatise on Spherical Geometry, Containing Its Properties, the Doctrine of Its Loci, the Maxima and Minima of Spherical Lines and Areas","author_name":"John Howard","thumbnail_url":"https://www.ebooknetworking.net/books/B00/DNA/bigB00DNARP9I.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B00DNARP9I.html\">A Treatise on Spherical Geometry, Containing Its Properties, the Doctrine of Its Loci, the Maxima and Minima of Spherical Lines and Areas</a>","width":400,"height":300}